FCC ID: 2A3NOTD009 Call Pager/Calling Button

Call Pager/Calling Button User Manual CONTENTS Features

...........................................................01 Technical data

................................................01 Diagram

............................................................02 Button function

................................................02 Settings Diagram

............................................03 Screen Display function

...............................04 Operation instruction

.....................................04 Packing list

.......................................................06 FAQ

....................................................................07 Warning

.............................................................08 Retekess Wireless Calling System User Manual Warning Before using this radio, read this guide which contains important operating instructions for safe usage and RF energy awareness and control for compliance with applicable standards and regulations. Local Government Regulations When the radios are used as a consequence of employment, the Local Government Regulations requires users to be fully aware of and able to control their exposure to meet occupational requirements. Exposure awareness can be facilitated by the use of a product label directing users to specific user awareness information. Your Retekess radio has a RF Exposure Product Label. Also, your user manual, or separate safety booklet includes information and operating instructions required to control your RF exposure and to satisfy compliance requirements. Compliance with RF Exposure Standards (If appropriate, Reference to the actual products Safety Marking) Your Retekess radio is designed and tested to comply with a number of national and International standards and guidelines (listed below) for human exposure to radio frequency electro-magnetic energy. FCC ID The FCC ID means: This radio complies with the IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF exposure environments at operating duty factors of up to 50% talk-50%

listen and is approved for occupational use only. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver. 8 Warning

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help. The CE marking means: Hereby, Henan Eshow Electronic Commerce Co.,Ltd. declares that the radio equipment type is in compliance with the RED Directive 2014/53/EU and the ROHS Directive 2011/65/EU and the WEEE Directive 2012/19/EU. The full text of the EU declaration of conformity is available at the following internet address: www.tivdio.com IC ID This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:

This device may not cause interference, and

This device must accept any interference, including interference that may cause undesired operation of the device. In terms of measuring RF energy for compliance with these exposure guidelines, your radio generates measurable RF energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. Avoid Choking Hazard Small Parts. Not for children under 3 years. Protect your hearing

Use the lowest volume necessary to do your job.

Turnupthevolumeonlyifyouareinnoisysurroundings.

Turndownthevolumebeforeaddingheadsetorearpiece. WARNING Turn off your radio power in the following conditions:

Turn off your radio before removing (installing) a battery or accessory r when charging obattery.

Turnoffyourradiowhenyouareinapotentiallyhazardousenvironments:Near WARNING electrical blasting caps, in a blasting area, in explosive atmospheres (inflammable gas, dust particles, metallic powders, grain powders, etc.).

Turnoffyourradiowhiletakingonfuelorwhileparkedatgasolineservicestations. To avoid electromagnetic interference and/or compatibility conflicts

Turnoffyourradioinanyfacilitywherepostednoticesinstructyoutodoso,hospitals or health care facilities (Pacemakers, Hearing Aids and Other Medical Devices) may be using equipment that is sensitive to external RF energy.

Turnoffyourradiowhenonboardanaircraft.Anyuseofaradiomustbeinaccordance with applicable regulations per airline crew instructions. 9 Warning Avoid Burns Antennas

Donotuseanyportableradiothathasadamagedantenna.Ifadamagedantenna comes into contact with the skin when the radio is in use, a minor burn can result. WARNING Batteries (If appropriate)

Whentheconductivematerialsuchasjewelry,keysorchainstouchexposedterminals of the batteries, may complete an electrical circuit (short circuit the battery) and become hot to cause bodily injury such as burns. Exercise care in handling any battery, particularly when placing it inside a pocket, purse or other container with metal objects. Long transmission (If appropriate)

Whenthetransceiverisusedforlongtransmissions,theradiatorandchassiswill become hot. Safety Operation Forbid

Donotusechargeroutdoorsorinmoistenvironments,useonlyindrylocations

/conditions.

Donotdisassemblethecharger,thatmayresultinriskofelectricalshockorfire.

Donotoperatethechargerifithasbeenbrokenordamagedinanyway.

Do not place a portable radio in the area over an air bag or in the air bag deployment area. The radio may be propelled with great force and cause serious injury to occupants of the vehicle when the air bag inflates. WARNING To reduce risk

Pullbytheplugratherthanthecordwhendisconnectingthecharger.

UnplugthechargerfromtheACoutletbeforeattemptinganymaintenanceorcleaning.

ContactRetekessforassistanceregardingrepairsandservice. EU Importer Name Germany Retevis Technology GmbH Address Uetzenacker29,38176wendeburg 10

Page 1 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA For FCC TEST REPORT Call Pager/Calling Button Test Model: TD009 Additional Model No.: TD007 ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD

: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD

: ROOM 709, SANJIANG BUILDING, NO.170 NANYANG ROAD, HUIJI DISTRICT, ZHENGZHOU HENAN CHINA

: Shenzhen LCS Compliance Testing Laboratory Ltd.

: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China

(+86)755-82591330

(+86)755-82591332

: www.LCS-cert.com

: webmaster@LCS-cert.com

: July 11, 2022

: 2

: Prototype

: July 11, 2022 ~ July 14, 2022

: July 15, 2022 Prepared for Address Prepared by Address Tel Fax Web Mail Date of receipt of test sample Number of tested samples Serial number Date of Test Date of Report Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 2 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA FCC TEST REPORT FCC CFR 47 PART 15 C(15.231) Report Reference No. .............. : LCSA070722066EA Date of Issue ............................... : July 15, 2022 Testing Laboratory Name ......... : Shenzhen LCS Compliance Testing Laboratory Ltd. Address ...................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Testing Location/ Procedure ....... :

Shajing Street, Baoan District, Shenzhen, 518000, China Full application of Harmonised standards Partial application of Harmonised standards Other standard testing method Applicants Name ...................... : ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address ...................................... : ROOM 709, SANJIANG BUILDING, NO.170 NANYANG ROAD, HUIJI DISTRICT, ZHENGZHOU HENAN CHINA Test Specification Standard ..................................... : FCC CFR 47 PART 15 Subpart C, ANSI C63.10-2013 Test Report Form No. .............. : LCSEMC-1.0 TRF Originator ............................ : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF ................................. : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test Item Description. .............. : Call Pager/Calling Button Trade Mark ................................. : RETEKESS Test Model .................................. : TD009 Ratings ....................................... : 12V/23A Alkaline Battery Result ........................................ : Positive Compiled by:

Supervised by:

Approved by:

Jack Liu/ Administrator Cary Luo/ Technique principal Gavin Liang/ Manager Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 3 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA FCC -- TEST REPORT Test Report No. :

LCSA070722066EA July 15, 2022 Date of issue EUT......................................... Test Model...........................

: Call Pager/Calling Button

: TD009 Applicant...............................

: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD ROOM 709, SANJIANG BUILDING, NO.170 NANYANG ROAD, HUIJI DISTRICT, ZHENGZHOU HENAN CHINA Manufacturer....................... Address................................... : ROOM 709, SANJIANG BUILDING, NO.170 NANYANG ROAD,

: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD HUIJI DISTRICT, ZHENGZHOU HENAN CHINA Address..................................

Telephone............................... Fax..........................................

Telephone............................... : /

Fax..........................................

Factory....................... Address................................... : /

Telephone............................... : /

Fax.......................................... Test Result Positive The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 4 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA Revision History Report Version 000 Issue Date July 15, 2022 Revision Content Initial Issue Revised By

Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 5 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA TABLE OF CONTENTS 1. GENERAL INFORMATION ........................................................................................................................ 6 1.1. DESCRIPTION OF DEVICE (EUT) ............................................................................................................. 6 1.2. OBJECTIVE............................................................................................................................................. 6 1.3. ENVIRONMENTAL CONDITIONS ................................................................................................................ 6 1.4. HOST SYSTEM CONFIGURATION LIST AND DETAILS .................................................................................. 6 1.5. EXTERNAL I/O PORT .............................................................................................................................. 6 1.6. EUT OPERATION.................................................................................................................................... 7 1.7. ANTENNA SYSTEM .................................................................................................................................. 7 1.8. DESCRIPTION OF TEST FACILITY ............................................................................................................. 7 1.9. STATEMENT OF THE MEASUREMENT UNCERTAINTY ................................................................................. 7 2. TEST METHODOLOGY ............................................................................................................................. 8 2.1. EUT CONFIGURATION ............................................................................................................................ 8 2.2. EUT EXERCISE ...................................................................................................................................... 8 2.3. GENERAL TEST PROCEDURES ................................................................................................................ 8 2.4. INSTRUMENT CALIBRATION ..................................................................................................................... 8 2.5. TEST MODE ........................................................................................................................................... 8 3. SYSTEM TEST CONFIGURATION ........................................................................................................... 9 3.1. JUSTIFICATION ....................................................................................................................................... 9 3.2. EUT EXERCISE SOFTWARE .................................................................................................................... 9 3.3. SPECIAL ACCESSORIES .......................................................................................................................... 9 3.4. BLOCK DIAGRAM/SCHEMATICS ................................................................................................................ 9 3.5. EQUIPMENT MODIFICATIONS ................................................................................................................... 9 3.6. TEST SETUP .......................................................................................................................................... 9 4. SUMMARY OF TEST RESULTS ............................................................................................................. 10 5. TEST ITEMS AND RESULTS .................................................................................................................. 11 5.1. TRANSMITTER DEACTIVATION TIME ....................................................................................................... 11 5.2. TRANSMITTER FIELD STRENGTH OF EMISSIONS ..................................................................................... 13 5.3. 20DB BANDWIDTH EMISSIONS .............................................................................................................. 23 5.4. DUTY CYCLE ........................................................................................................................................ 24 5.5. POWER LINE CONDUCTED EMISSIONS .................................................................................................... 25 5.6. ANTENNA REQUIREMENT ...................................................................................................................... 26 6. LIST OF MEASURING EQUIPMENTS .................................................................................................... 27 7. TEST SETUP PHOTOGRAPHS .............................................................................................................. 28 8. EXTERIOR PHOTOGRAPHS OF THE EUT ............................................................................................ 28 9. INTERIOR PHOTOGRAPHS OF THE EUT ............................................................................................. 28 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 6 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 1. GENERAL INFORMATION 1.1. Description of Device (EUT) 433MHz Operation frequency

: 433.92MHz

: 12V/23A Alkaline Battery

: Call Pager/Calling Button

: TD009

: ASK

: 1

: Internal Antenna

: 2.5dBi (Max) EUT Test Model Hardware version Software version Power Supply Modulation Type Channel Number Antenna Type Antenna Gain 1.2. Objective The primary objective of the manufacturer is compliance with Subpart C of Part 15 of FCC Rules for the radiated and conducted emissions of intentional radiator. Certification of these devices is required as a prerequisite to marketing as defined in Part 2 the FCC Rules Certification is a procedure where the manufacturer or a contracted laboratory makes measurements and submits the test data and technical information to the FCC. The FCC issues a grant of equipment authorization upon successful completion of their review of the submitted documents. Once the equipment authorization has been obtained, the label indicating compliance must be attached to all identical units, which are subsequently manufactured. Maintenance of compliance is the responsibility of the manufacturer. Any modification of the product which may result in increased emissions should be checked to ensure compliance has been maintained

(i.e., printed circuit board layout changes, different line filter, different power supply, harnessing or I/O cable changes, etc.). During the measurement the environmental conditions were within the listed ranges:

1.3. Environmental Conditions

- Temperature: 15-35C

- Humidity: 30-60 %

- Atmospheric pressure: 86-106 kPa 1.4. Host System Configuration List and Details Manufacturer

Description

Model

Serial Number Certificate

1.5. External I/O Port I/O Port Description

Quantity

Cable

Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 7 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 1.6. EUT Operation 1.7. Antenna System The EUT was placed in a RF test mode for testing of the transmitter and in normal mode of operation for testing the digital circuitry and receiver. The directional gains of antenna used for transmitting is 2.5dBi, and EUT uses an internal antenna which is permanently attached. 1.8. Description of Test Facility Site Description EMC Lab.

: NVLAP Accreditation Code is 600167-0. FCC Designation Number is CN5024. CAB identifier is CN0071. CNAS Registration Number is L4595. Test Firm Registration Number: 254912. The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.4:2014 and CISPR 16-1-4:2010 SVSWR requirement for radiated emission above 1GHz. 1.9. Statement of The Measurement Uncertainty ISO Guide 17025 requires that an estimate of the measurement uncertainties associated with the emissions test results be included in the report. The measurement uncertainties given below are based on a 95% confidence level and were calculated in accordance with NAMAS document NIS 81. Test Item Radiation Uncertainty Conduction Uncertainty Power disturbance

Frequency Range 9KHz~30MHz 30MHz~200MHz 200MHz~1000MHz 1GHz~26.5GH 150kHz~30MHz 30MHz~300MHz Uncertainty 3.10dB 2.96dB 3.10dB 4.20dB 1.63dB 1.60dB Note

(1)

(1)

(1)

(1)

(1)

(1)

(1). This uncertainty represents an expanded uncertainty expressed at approximately the 95%

confidence level using a coverage factor of k=2. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 8 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 2. TEST METHODOLOGY All measurements contained in this report were conducted with ANSI C63.10-2013, American National Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices. The radiated testing was performed at an antenna-to-EUT distance of 3 meters. All radiated and conducted emissions measurement was performed at Shenzhen LCS Compliance Testing Laboratory Ltd. The EUT configuration for testing is installed on RF field strength measurement to meet the Commissions requirement and operating in a manner that intends to maximize its emission characteristics in a continuous normal application. 2.1. EUT Configuration 2.2. EUT Exercise The EUT was operated in the normal operating mode. The TX frequency that was fixed which was for the purpose of the measurements. According to its specifications, the EUT must comply with the requirements of the Section 15.203, 15.205, 15.207, 15.209 and 15.231 under the FCC Rules Part 15 Subpart C. 2.3. General Test Procedures 2.3.1 Conducted Emissions The EUT is placed on the turntable, which is 0.8 m above ground plane. According to the requirements in Section 13.1.4.1 of ANSI C63.10 Conducted emissions from the EUT measured in the frequency range between 0.15 MHz and 30MHz using Quasi-peak and average detector modes. 2.3.2 Radiated Emissions The EUT is placed on a turn table, which is 0.8 m above ground plane and for below 1GHz and 1.5m for above 1GHz. The turntable shall rotate 360 degrees to determine the position of maximum emission level. EUT is set 3m away from the receiving antenna, which varied from 1m to 4m to find out the highest emission. And also, each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical. In order to find out the maximum emissions, exploratory radiated emission measurements were made according to the requirements in Section 13.1.4.1 of ANSI C63.10 2.4. Instrument Calibration All test equipment is regularly checked to ensure that performance is maintained in accordance with the manufacturer's specifications. All antennas are calibrated at regular intervals with respect to tuned half-wave dipoles. An exhibit of this report contains the list of test equipment used and calibration information. 2.5. Test Mode The EUT has been tested under engineering mode. The field strength of radiation emission was measured in the following position: EUT stand-up position (Y axis), lie-down position (X, Z axis). The worst case of X axis was reported. A new battery supplied DC 12V power to the EUT for testing. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 9 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 3. SYSTEM TEST CONFIGURATION 3.1. Justification The system was configured for testing in a continuous transmits condition. N/A N/A 3.2. EUT Exercise Software 3.3. Special Accessories 3.4. Block Diagram/Schematics Please refer to the related document 3.5. Equipment Modifications 3.6. Test Setup Please refer to the test setup photo. Shenzhen LCS Compliance Testing Laboratory Ltd. has not done any modification on the EUT. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 10 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 4. SUMMARY OF TEST RESULTS Rules 15.203 15.205 15.209 15.231 (b) 15.231 (c) 15.231 (a)(1) 15.231 15.207 Description of test Antenna Requirement Restricted Band General Requirement Radiated Emissions 20dB Bandwidth Testing Deactivation Testing Duty cycle Factor Conducted Emissions Result Compliant Compliant Compliant Compliant Compliant Compliant Compliant N/A Note: All test modes were taken into consideration, but we only recorded the worst case in this report. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 11 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5. TEST ITEMS AND RESULTS 5.1. Transmitter Deactivation Time FCC 15.231 (a) 5.1.1. Limit 5.1.2. Test Procedure 5.1.3. Test Results A manually operated transmitter shall employ a switch that will automatically deactivate the transmitter within not more than 5 seconds of being released. Maximizing procedure was performed on the highest emissions to ensure that the EUT complied with all installation combinations. Temperature Test Engineer 23.5 Bill Zhu Humidity Configurations 52.2%

TX Mode Frequency

(MHz) 433.92 Activation Time

(s) 0.2701 Limit: not more than 5 seconds of being released (s) 5 Conclusion PASS Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 12 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 13 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.2. Transmitter Field Strength of Emissions 5.2.1. Limit FCC 15.231 (b) In addition to the provisions of 15.205, the field strength of emissions from Intentional radiators operated under this section shall not exceed the following:

Fundamental frequency

(MHz) 40.66-40.70 70-130 130-174 174-260 260-470 Above 470 Field Strength of Fundamental

(microvolt/meter) 2,250 1,250 1,250 to 3,750 3,750 3,750 to12, 500 12,500 Field Strength of spurious emissions

(microvolt/meter) 225 125 125 to375 375 375 to 1,250 1,250

[Where F is the frequency in MHz, the formulas for calculating the maximum permitted fundamental field strengths are as follows: for the band 130-174 MHz, V/m at 3 meters = 56.81818(F) - 6136.3636; for the band 260-470 MHz, V/m at 3 meters = 41.6667(F) - 7083.3333. The maximum permitted unwanted emission level is 20 dB below the maximum permitted fundamental level.]

15.205 (a) Except as shown in paragraph (d) of this section, only spurious emissions are permitted in any of the frequency bands listed below:

MHz MHz MHz GHz 0.090-0.110 10.495-0.505 2.1735-2.1905 4.125-4.128 4.17725-4.17775 4.20725-4.20775 6.215-6.218 6.26775-6.26825 6.31175-6.31225 8.291-8.294 8.362-8.366 8.37625-8.38675 8.41425-8.41475 12.29-12.293 12.51975-12.52025 12.57675-12.57725 13.36-13.41 16.42-16.423 16.69475-16.68525 16.80425-16.80475 25.525.67 37.5-38.25 73-74.6 74.8-75.2 108-121.94 123-138 149.9-150.05 156.52475-156.52525 156.7-156.9 162.0125167.17 167.72-173.2 240-285 322-335.4 399.9-410 608-614 960-1240 1300-1427 1435-1626.5 1645.5-1646.5 1660-1710 1718.8-1722.2 2200-2300 2310-2390 2483.5-2500 2655-2900 3260-3267 3332-3339 3345.8-3358 3600-4400 4.5-5.15 5.35-5.46 7.25-7.75 8.025-8.5 9.0-9.2 9.3-9.5 10.6-12.7 13.25-13.4 14.47-14.5 15.35-16.2 17.7-21.4 22.01-23.12 23.6-24.0 31.2-31.8 36.43-36.5

.(2) 1. Until February 1, 1999, this restricted band shall be 0.490-0.510 MHz. 2. Above 38.6 15.205 (b) Except as provided in paragraphs (d) and (e), the field strength of emissions appearing within these frequency bands shall not exceed the limits shown in Section 15.209. At frequencies equal to or less than 1000 MHz, compliance with the limits in Section 15.209 shall be demonstrated using measurement instrumentation employing a CISPR quasi peak detector. Above 1000 MHz, compliance with the emission limits in Section 15.209 shall be demonstrated based on the average value of the measured emissions. The provisions in Section 15.35 apply to these measurements. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 14 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 15.209 (a) Except as provided elsewhere in this Subpart, the emissions from an intentional radiator shall not exceed the field strength levels specified in the following table:

Frequency

(MHz) 0.009-0.490 0.490-1.705 1.705-30.0 30-88 88-216 216-960 Above 960 Field Strength

(microvolts/meter) 2400/F (KHz) 24000 (KHz) 30 100**

150**

200**

500 Measurement Distance

(meters) 300 30 30 3 3 3 3

** Except as provided in paragraph (g), fundamental emissions from intentional radiators operating under this Section shall not be located in the frequency bands 54 72 MHz, 76 88 MHz, 174 216 MHz or 470 806 MHz. However, operation within these frequency bands is permitted under other sections of this Part, e.g., Sections 15.231 and 15.241. 15.209 (b) In the emission table above, the tighter limit applies at the band edges. 5.2.2. Measuring Instruments and Setting Please refer to section 6 of equipments list in this report. The following table is the setting of spectrum analyzer and receiver. Spectrum Parameter Attenuation Start Frequency Stop Frequency RB / VB (Emission in restricted band) RB / VB (Emission in non-restricted band) Setting Auto 1000 MHz 10th carrier harmonic 1MHz / 1MHz for Peak, 1 MHz / 10Hz for Average 1MHz / 1MHz for Peak, 1 MHz / 10Hz for Average Spectrum Parameter Attenuation Start ~ Stop Frequency Start ~ Stop Frequency Start ~ Stop Frequency Setting Auto 9kHz~150kHz / RB 200Hz for QP 150kHz~30MHz / RB 9kHz for QP 30MHz~1000MHz / RB 120kHz for QP Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 15 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.2.3. Test Procedures 1) Sequence of testing 9 kHz to 30 MHz Setup:

--- The equipment was set up to simulate a typical usage like described in the user manual or described by manufacturer.

--- If the EUT is a tabletop system, a rotatable table with 1.5 m height is used.

--- If the EUT is a floor standing device, it is placed on the ground.

--- Auxiliary equipment and cables were positioned to simulate normal operation conditions.

--- The AC power port of the EUT (if available) is connected to a power outlet below the turntable.

--- The measurement distance is 3 meter.

--- The EUT was set into operation. Premeasurement:

--- The turntable rotates from 0 to 315 using 45 steps.

--- The antenna height is 1.5 meter.

--- At each turntable position the analyzer sweeps with peak detection to find the maximum of all emissions Final measurement:

--- Identified emissions during the premeasurement the software maximizes by rotating the turntable position (0 to 360) and by rotating the elevation axes (0 to 360).

--- The final measurement will be done in the position (turntable and elevation) causing the highest emissions with QPK detector.

--- The final levels, frequency, measuring time, bandwidth, turntable position, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the premeasurement and the limit will be stored. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 16 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 2) Sequence of testing 30 MHz to 1 GHz Setup:

--- The equipment was set up to simulate a typical usage like described in the user manual or described by manufacturer.

--- If the EUT is a tabletop system, a table with 0.8 m height is used, which is placed on the ground plane.

--- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both.

--- Auxiliary equipment and cables were positioned to simulate normal operation conditions.

--- The AC power port of the EUT (if available) is connected to a power outlet below the turntable.

--- The measurement distance is 3 meter.

--- The EUT was set into operation. Premeasurement:

--- The turntable rotates from 0 to 315 using 45 steps.

--- The antenna is polarized vertical and horizontal.

--- The antenna height changes from 1 to 3 meter.

--- At each turntable position, antenna polarization and height the analyzer sweeps three times in peak to find the maximum of all emissions. Final measurement:

--- The final measurement will be performed with minimum the six highest peaks.

--- According to the maximum antenna and turntable positions of premeasurement the software maximize the peaks by changing turntable position ( 45) and antenna movement between 1 and 4 meter.

--- The final measurement will be done with QP detector with an EMI receiver.

--- The final levels, frequency, measuring time, bandwidth, antenna height, antenna polarization, turntable angle, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the premeasurement with marked maximum final measurements and the limit will be stored. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 17 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 3) Sequence of testing 1 GHz to 12.75 GHz Setup:

--- The equipment was set up to simulate a typical usage like described in the user manual or described by manufacturer.

--- If the EUT is a tabletop system, a rotatable table with 1.5 m height is used.

--- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both.

--- Auxiliary equipment and cables were positioned to simulate normal operation conditions.

--- The AC power port of the EUT (if available) is connected to a power outlet below the turntable.

--- The measurement distance is 3 meter.

--- The EUT was set into operation. Premeasurement:

--- The turntable rotates from 0 to 315 using 45 steps.

--- The antenna is polarized vertical and horizontal.

--- The antenna height is 1.5 meter.

--- At each turntable position and antenna polarization the analyzer sweeps with peak detection to find the maximum of all emissions. Final measurement:

--- The final measurement will be performed with minimum the six highest peaks.

--- According to the maximum found antenna polarisation and turntable position of the premeasurement the software maximizes the peaks by rotating the turntable position (0 to 360). This measurement is repeated for different EUT-table positions (0 to 150 in 30-steps). This procedure is repeated for both antenna polarisations.

--- The final measurement will be done in the position (turntable, EUT-table and antenna polarization) causing the highest emissions with Peak and RMS detector.

--- The final levels, frequency, measuring time, bandwidth, turntable position, EUT-table position, antenna polarization, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the premeasurement with marked maximum final measurements and the limit will be stored. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 18 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.2.4 Block Diagram of Test Setup Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 19 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.2.5. EUT Operation during Test The EUT was programmed to be in continuously transmitting mode. 5.2.6. Results of Radiated Emissions (9 kHz~30MHz) Temperature Test Engineer Freq.

(MHz)

23.8 Bill Zhu Level

(dBuV)

Humidity Configurations 52.2%

TX Mode Over Limit

(dB)

Over Limit

(dBuV)

Remark See Note Note:

The amplitude of spurious emissions which are attenuated by more than 20 dB below the permissible value has no need to be reported. Distance extrapolation factor = 40 log (specific distance / test distance) (dB);

Limit line = specific limits (dBuV) + distance extrapolation factor. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 20 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.2.7. Results of Radiated Emissions (30MHz~1GHz) Temperature Test Engineer 23.8 Bill Zhu Humidity Configurations 52.2%

TX Mode Frequency Point Horizontal Frequency

(MHz) 434.065 869.130 Peak Level

(dBV/m) 62.64 37.84 AV Factor(dBV/m)

(see Section 5.4)

-7.47

-7.47 Fundamental and Harmonics Result Average Level

(dBV/m) 55.17 30.37 Limit(dBV/m)

(average) 80.83 60.83 Limit(dBV/m)

(Peak) 100.83 80.83 Conclusion PASS PASS Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 21 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA Vertical Frequency Point Frequency

(MHz) 434.065 869.130 Peak Level

(dBV/m) 57.53 34.00 AV Factor(dBV/m)

(see Section 5.4)

-9.57

-9.57 Fundamental and Harmonics Result Average Level

(dBV/m) 47.96 24.43 Limit(dBV/m)

(average) 80.83 60.83 Limit(dBV/m)

(Peak) 100.83 80.83 Conclusion PASS PASS Note:

1. All reading are Quasi-peak values. 2. Measured = Reading + Antenna Factor + Cable Loss 3. The emission that are 20dB below the official limit are not reported 4. * - means fundamental frequency 5. ** - means harmonic frequency 6. AV values = Peak values + Duty cycle factor Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 22 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.2.8. Results of Radiated Emissions (Above 1GHz) Temperature Test Engineer 23.5 Bill Zhu Humidity Configurations 52.2%

TX Mode Peak Value:

FrequencyMHz Level (dBuV/m) Limit Line (dBuV/m) Over limit (dB) 1301.62 1733.81 2168.39 1299.87 49.48 35.30 41.91 47.22 74.00 74.00 74.00 74.00

-24.52

-38.70

-32.09

-26.78 Polarization Horizontal Horizontal Vertical Vertical Average Value:

Frequency

(MHz) 1301.62 1733.81 2168.39 1299.87 Peak Level

(dBuV/m) 49.48 35.30 41.91 47.22 average factor Average value

(dBuV/m) Limit Line

(dBuV/m) Over limit

(dB) Polarization

-9.57

-9.57

-9.57

-9.57 39.91 25.73 32.34 37.65 54.00 54.00 54.00 54.00

-14.09

-28.27

-21.66

-16.35 Horizontal Horizontal Vertical Vertical 1. Measuring frequencies from 9k~10th harmonic (ex. 5GHz), No emission found between lowest internal used/generated frequency to 30MHz. 2. Radiated emissions measured in frequency range from 9k~10th harmonic (ex. 5GHz) were made with an instrument using Peak detector mode. 3. Data of measurement within this frequency range shown --- in the table above means the reading of emissions are attenuated more than 20dB below the permissible limits or the field strength is too small to be measured. 4. Average value=peak reading level + average factor. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 23 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.3. 20dB Bandwidth Emissions FCC 15.231 (c) 5.3.1. Limit The bandwidth of the emission shall be no wider than 0.25% of the center frequency for devices operating above 70 MHz and below 900 MHz. Bandwidth is determined at the points 20 dB down from the modulated carrier. With the EUTs antenna attached, the EUTs 20dB Bandwidth power was received by the test antenna which was connected to the spectrum analyzer with the START and STOP frequencies set to the EUTs operation band. 5.3.2. Test Procedure 5.3.3. Test Data Temperature Test Engineer 23.5 Bill Zhu Humidity Configurations 52.2%

TX Mode Center Frequency of operation MHz 433.92 Maximum allowed bandwidth:

RBW:

VBW:

Maximum allowed bandwidth kHz 1084.8 Measured 20dB bandwidth kHz 9.288 0.25% of the centre operating frequency 0.5% of the centre operating frequency 1kHz 3kHz other kHz other kHz 100kHz 300kHz Result PASS Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 24 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.4. Duty cycle 5.4.1. Limit No dedicated limit specified in the Rules. 5.4.2. Test Procedure 5.4.2.1. Place the EUT on the table and set it in transmitting mode. 5.4.2.2. Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the spectrum analyzer. 5.4.2.3. Set centre frequency of spectrum analyzer=operating frequency. 5.4.2.4. Set the spectrum analyzer as RBW=1MHz,VBW=1MHz,Span=0Hz, Adjust Sweep=Auto. 5.4.2.5. Repeat above procedures until all frequency measured was complete. 5.4.3. Test Data Tp = 100(ms) Ton = 1.34*16+0.4366*27(ms)=33.2282(ms) The duty cycle=33.2282/100=33.23%

Average Correction Factory = 20log (Ton/Tp) =20log (0.3323) = -9.57dB Test plot of Duty cyclenon-periodic and period (T) is less than 100ms Fig.1 Fig.2 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 25 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.5. Power line conducted emissions 5.5.1 Standard Applicable According to 15.207 (a): For an intentional radiator which is designed to be connected to the public utility

(AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any frequency or frequencies within the band 150 kHz to 30 MHz shall not exceed 250 microvolts (The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz). The limits at specific frequency range is listed as follows:

Frequency Range

(MHz) 0.15 to 0.50 0.50 to 5 5 to 30 Limits (dBV) Quasi-peak 66 to 56 56 60 Average 56 to 46 46 50 5.5.2 Block Diagram of Test Setup 5.5.3 Test Results Not applicable. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity EUT LISN EMI receiver Reference ground plane Vert. reference plane Page 26 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 5.6. Antenna Requirement FCC 15.203 5.6.1. Standard Applicable 5.6.2. Result Compliant. An intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. The use of a permanently attached antenna or of an antenna that uses a unique coupling to the intentional radiator shall be considered sufficient to comply with the provisions of this section. This EUT uses an integral antenna which is permanently attached. The antenna used for transmitting is permanently attached and no consideration of replacement. Please see EUT photo for details. Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 27 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 6. LIST OF MEASURING EQUIPMENTS Item Equipment Manufacturer Model No. Serial No. Cal Date Due Date MXA Signal Analyzer Agilent MY49100060 2021-11-16 2022-11-15 DC Power Supply Temperature & Humidity Chamber EMI Test Software Agilent GUANGZHOU GOGNWEN Farad N/A 2021-11-25 2022-11-24 GDS-100 70932 2021-10-07 2022-10-06

N/A N/A 3m Full Anechoic Chamber MRDIANZI MR009 2021-09-25 2022-09-24 Positioning Controller MF MF78020803 2022-06-16 2023-06-15 Active Loop Antenna SCHWARZBECK FMZB 1519B 00005 2021-07-25 2024-07-24 By-log Antenna SCHWARZBECK VULB9163 9163-470 2021-07-25 2024-07-24 Horn Antenna SCHWARZBECK BBHA 9120D 9120D-1925 2021-07-01 2024-06-30 EMI Test Receiver RS SPECTRUM ANALYZER Broadband Preamplifier EMI Test Receiver Artificial Mains R&S R&S

R&S R&S BP-01M18G P190501 2022-06-16 2023-06-15 101181 100503 101840 101288 2022-06-16 2023-06-15 2021-11-16 2022-11-15 2022-06-16 2023-06-15 2022-06-16 2023-06-15 10dB Attenuator SCHWARZBECK MTS-IMP-136 261115-001-0032 2022-06-16 2023-06-15 N9020A E3642A EZ FAC-3M MF7082 ESR 7 FSP40 ESPI ENV216 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity Page 28 of 28 FCC ID: 2A3NOTD009 Report No.: LCSA070722066EA 7. TEST SETUP PHOTOGRAPHS Please refer to separated files for External Photos of the EUT. 8. EXTERIOR PHOTOGRAPHS OF THE EUT Please refer to separated files for External Photos of the EUT. 9. INTERIOR PHOTOGRAPHS OF THE EUT Please refer to separated files for Internal Photos of the EUT.

----------------THE END OF TEST REPORT---------------

Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Agent Authorization Company: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address: ROOM 709, SANJIANG BUILDING, NO.170 NANYANG ROAD, HUIJI DISTRICT, ZHENGZHOU HENAN CHINA Product Name: Call Pager/Calling Button Trade Mark: RETEKESS Model Number(s): TD009,TD007 FCC ID: 2A3NOTD009 We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Date: 2022-07-26 Name:

Weidong Shen Title:

General Manager Company: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address: ROOM 709, SANJIANG BUILDING, NO.170 NANYANG ROAD, HUIJI DISTRICT, ZHENGZHOU HENAN CHINA Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Dear Sir/Madam, We, ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Hereby declares the following statement:

PCB board, structure and internal of these model(s) are the same, Only models name is different for these models:

Product Name: Call Pager/Calling Button Trade Mark: RETEKESS Model Number(s): TD009,TD007 FCC ID: 2A3NOTD009 Signature:

Date: 2022-07-26 Name:

Weidong Shen Title:

General Manager Company: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022-07-26 Subject; Request for Confidentiality FCC ID: 2A3NOTD009 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure External Photos Test Setup Photos Internal Photos User Manual In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

OR For 45 days, pursuant to Public Notice DA 04-1705. For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Weidong Shen Title: General Manager