FCC ID: 2A8B6-BA03 Treadmill

Page 1 of 1 FCC ID: 2A8B6-BA03 LABEL AND LOCATION Treadmill Model: BA03 FCC ID: 2A8B6-BA03

(Size: L4.0cm x 3.0cm) Label Location 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

- Hangzhou Ruze E-commerce Co., Ltd -

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 U.S. Agent Designation 12/10/2023 Hangzhou Ruze E-commerce Co., Ltd acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2A8B6-BA03):

Name and company of U.S. agent:

FCC US Agent, LLC Physical U.S. address of agent:

3722 Illinois Avenue, Saint Charles, IL, 60174, USA FRN of U.S. agent:

0033402884 Email address of U.S. agent:

Support@FCCUSAgent.com FCC US Agent, LLC acknowledges their obligation to accept service of process on behalf of Hangzhou Ruze E-

commerce Co., Ltd. Hangzhou Ruze E-commerce Co., Ltd with the FRN 0032759573 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature connie hong manager Hangzhou Ruze e-commerce Co., Ltd Signature Tim Payne Manager FCC US Agent, LLC 5 0 V

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WARNING:pdfminer.pdfpage:The PDF <_io.BufferedReader name='/Volumes/Scratch/Incoming/eg-scratch/6160624.pdf'> contains a metadata field indicating that it should not allow text extraction. Ignoring this field and proceeding. Use the check_extractable if you want to raise an error in this case OTA TEST REPORT Applicant Espressif System (Shanghai) Co.,Ltd Product ESP32-C3-WROOM-02 Model ESP-ANT B Report No. Y2102A0260-T3 Issue Date March 9, 2021 TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2008. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Preparedby:PengTao Approvedby:KaiXu TA Technology (Shanghai) Co., Ltd. No.145,JintangRd,TangzhenIndustryPark,PudongShanghai,China TEL:+8602150791141/2/3 FAX:+8602150791141/2/38000 OTA Test Report Report No: Y2102A0260-T3 TABLE OF CONTENTS 1. Test Laboratory .............................................................................................................................. 3 1.1. 1.2. 1.3. 1.4. Notes of the Test Report ................................................................................................... 3 Test facility ........................................................................................................................ 3 Testing Location ................................................................................................................ 3 Laboratory Environment .................................................................................................... 4 2. General Description of Equipment under Test ............................................................................... 5 2.1. Applicant and Manufacturer Information ............................................................................ 5 2.2. General information ........................................................................................................... 5 2.3. 2.4. 2.5. Test Date ........................................................................................................................... 5 Receiving Date .................................................................................................................. 5 Applied Standards ............................................................................................................. 6 3. Test Conditions .............................................................................................................................. 7 3.1. 3.2. Test Configuration ............................................................................................................. 7 Test Measurement ............................................................................................................. 7 4. Test Results ................................................................................................................................... 8 4.1. Gain and Efficiency ............................................................................................................ 8 5. Equipment List ............................................................................................................................... 9 ANNEX A 3-D Pattern Plots ................................................................................................................... 10 ANNEX BThe EUT Appearance and Test Configuration ...................................................................... 12 B.1 EUT Appearance ................................................................................................................... 12 B.2 Test Configuration ................................................................................................................. 13 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 1. Test Laboratory 1.1. Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA technology

(shanghai) co., Ltd. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. 1.2. Test facility A2LA (Certificate Number: 3857.01) TA Technology (Shanghai) Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform measurement. 1.3. Testing Location Company:

TA Technology (Shanghai) Co., Ltd. Address:

No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China City:

Shanghai Post code:

201201 Country:

P. R. China Contact:

Xu Kai Telephone:

+86-021-50791141/2/3 Fax:

Website:

E-mail:

+86-021-50791141/2/3-8000 http://www.ta-shanghai.com xukai@ta-shanghai.com TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 1.4. Laboratory Environment Temperature Relative humidity Shield effect Ground resistance Min. =19Max. = 25 Min. =40%Max. =72%

0.7-6GHz

> 100dB

<0.5 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 4 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 2. General Description of Equipment under Test 2.1. Applicant and Manufacturer Information Applicant Name Espressif System (Shanghai) Co.,Ltd Applicant address Suite 204 Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China Manufacturer Name Espressif System (Shanghai) Co.,Ltd Manufacturer address Suite 204 Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China 2.2. General information Product Name:

ESP32-C3-WROOM-02 EUT Description Model HW Version:

SW Version:

ESP-ANT B ESP32-C3-WROOM-02 V1 esp32c3_phy_20210225_no_sleep_and_ampdu Antenna Type:

PCB Antenna Antenna Manufacturer:

Espressif System (Shanghai) Co.,Ltd 2402MHz ~ 2502MHz Test Frequency:

Note: The EUT is sent from the applicant to TA and the information of the EUT is declared by the applicant. All indications of Pass/Fail in this report are opinions expressed by TA Technology (Shanghai) Co., Ltd. based on interpretations and/or observations of test results. Measurement Uncertainties were not taken into account and are published for informational purposes only. Test lab. of the antenna gain and radiation pattern measurement: TA Technology (Shanghai) Co., Ltd. 2.3. Test Date The test is performed from February 25, 2021 to March 4, 2021. 2.4. Receiving Date The sample was received on February 25, 2021. TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 5 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 2.5. Applied Standards According to the specifications of the manufacturer, it must comply with the requirements of the following standards:

Test Method: ANSI/IEEE Std 149-2008 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 6 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 3. Test Conditions 3.1. Test Configuration Great-Circle-Cut method is used to measure the antenna 3D GAIN of EUT in OTA qualified anechoic chamber. Equipment Under Test (EUT) geometry centre vertical projection at the centre of platform, the distance from EUT to measurement antenna is 5m. 3.2. Test Measurement Spherical coordinate system Note: Theta is from 0~180 degree. Phi is from 0~360. Rotate the EUT and record the Data, the Figure 1 Test coordinate system step of rotation is 15 degree. Test Setup TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 7 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 4. Test Results 4.1. Gain and Efficiency Model Test State Frequency

(MHz) Efficiency

(dB) Efficiency

(%) Gain

(dBi) Directivity

(dBi) Note ESP-ANT B Free Space 2402 2407 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 2477 2482 2487 2492 2497 2502

-1.98

-1.76

-1.70

-1.60

-1.61

-1.77

-1.83

-1.73

-1.77

-1.79

-1.75

-1.76

-1.68

-1.95

-2.07

-1.87

-1.94

-1.98

-1.82

-1.72

-1.75 63.44 66.66 67.68 69.11 68.95 66.48 65.54 67.21 66.46 66.25 66.81 66.73 67.91 63.90 62.14 65.00 63.96 63.35 65.80 67.34 66.79 2.73 2.73 3.16 2.92 2.79 2.29 2.54 2.46 2.56 2.69 2.95 2.96 2.99 3.17 3.08 3.18 3.26 3.37 3.35 3.17 3.18 4.70 4.50 4.85 4.53 4.41 4.06 4.37 4.19 4.34 4.48 4.70 4.71 4.67 5.11 5.14 5.05 5.20 5.35 5.17 4.88 4.94 15 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 8 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 5. Equipment List Type of Equipment Manufacture Model Number S/N Calibration Date Expiration Time Network Analyzer Key sight E5071B MY42404014 2020-05-17 2021-05-16 Switch Control System Dual polarized horn antenna ETS ETS Software ETS-lindgren 7006/7001 00059957/MY 42001152 N/A N/A 3164-04 00062743 2020-04-14 2021-04-13 EMQ-100 Pattern Measurement software 1.09 N/A N/A TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 9 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 ANNEX A 3-D Pattern Plots Azimuth = 0.0 Elevation = 0.0 Roll = 0.0 Azimuth = 89.6 Elevation = 2.2 Roll = -91.9 Azimuth = 11.3 Elevation = -85.6 Roll = 98.6 Azimuth = -0.2 Elevation = 5.1 Roll = -4.5 Total Total Total Y Z Z X X Y Total Y Z X Y Z X

) B d

e s n o p s e R

) B d

e s n o p s e R

) B d

e s n o p s e R

) B d

e s n o p s e R 4 0

-4

-8

-12

-16 4 0

-4

-8

-12

-16 4 0

-4

-8

-12

-16 4 0

-4

-8

-12

-16

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r e w o P 60 90 120 Cut1 300 270 240 30 0 330 150 180 Angle (?

210 Max: 3 Min: -6 Scale: 1/div 2502 MHz 2402 MHz 2407 MHz 2412 MHz 2417 MHz 2422 MHz 2427 MHz 2432 MHz 2437 MHz 2442 MHz 2447 MHz 2452 MHz 2457 MHz 2462 MHz 2467 MHz 2472 MHz 2477 MHz 2482 MHz 2487 MHz 2492 MHz 2497 MHz TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 10 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3

) m B d

r e w o P 60 90 120

) m B d

r e w o P 60 90 120 Cut2 300 270 240 Cut3 300 270 240 30 0 330 150 210 180 Angle (?

30 0 330 150 180 Angle (?

210 Max: 4 Min: -12 Scale: 2/div Max: 4 Min: -10 Scale: 2/div 2502 MHz 2402 MHz 2407 MHz 2412 MHz 2417 MHz 2422 MHz 2427 MHz 2432 MHz 2437 MHz 2442 MHz 2447 MHz 2452 MHz 2457 MHz 2462 MHz 2467 MHz 2472 MHz 2477 MHz 2482 MHz 2487 MHz 2492 MHz 2497 MHz 2502 MHz 2402 MHz 2407 MHz 2412 MHz 2417 MHz 2422 MHz 2427 MHz 2432 MHz 2437 MHz 2442 MHz 2447 MHz 2452 MHz 2457 MHz 2462 MHz 2467 MHz 2472 MHz 2477 MHz 2482 MHz 2487 MHz 2492 MHz 2497 MHz 2402MHz ~2502 MHz Wi-Fi 2.4G 3D Gain TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 11 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 ANNEX BThe EUT Appearance and Test Configuration B.1 EUT Appearance Picture 1 Constituents of EUT TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 12 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd. OTA Test Report Report No: Y2102A0260-T3 B.2 Test Configuration Picture 2 Test Setup

******END OF REPORT ******

TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 13 of 13 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofTATechnology(Shanghai)Co.,Ltd.

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products:

FCC ID 2A8B6-BA03 Model name BA03 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are:

the Operational Description the Block Diagram the Schematics Part List Tune up Procedure The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-11 Name / Title: Connie Hong / Manager Company: Hangzhou Ruze e-commerce Co., Ltd Address: Room 801-3, building 5, information port phase 6, NO.666, Jianshe 2nd Road, HANGZHOU, China Phone: +86-18626877736 Fax: +86-18626877736 E-Mail: hongjiani@linzikg.com

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commissions Rules (47 C.F.R.) we attest as follows:

We, applicant Company Name: Hangzhou Ruze e-commerce Co., Ltd Address:

Room 801-3, building 5, information port phase 6, NO.666, Jianshe 2nd Road, HANGZHOU, China Phone: +86-18626877736 certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-11 Name / Title: Connie Hong / Manager Company: Hangzhou Ruze e-commerce Co., Ltd Address: Room 801-3, building 5, information port phase 6, NO.666, Jianshe 2nd Road, HANGZHOU, China Phone: +86-18626877736 Fax: +86-18626877736 E-Mail: hongjiani@linzikg.com

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commissions Rules (47 C.F.R.) we attest as follows for the product listed below:

FCC ID 2A8B6-BA03 We, applicant Model name BA03 Company Name: Hangzhou Ruze e-commerce Co., Ltd Address:

Room 801-3, building 5, information port phase 6, NO.666, Jianshe 2nd Road, HANGZHOU, China Phone: +86-18626877736 certify that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-11 Name / Title: Connie Hong / Manager Company: Hangzhou Ruze e-commerce Co., Ltd Address: Room 801-3, building 5, information port phase 6, NO.666, Jianshe 2nd Road, HANGZHOU, China Phone: +86-18626877736 Fax: +86-18626877736 E-Mail: hongjiani@linzikg.com

Hangzhou Ruze e-commerce Co., Ltd

\WIFI Channel 12 and 13 Declaration Letter We declare the equipment identified below with regards to Channel 12 and 13 capabilities for FCC ID: 2A8B6-BA03 Declaration Product hardware does not have the capability to operate on Channel 12 and 13. Product hardware has the capability to operate on Channel 12 and 13. However, these two channels will be disabled via software and will not be accessible to user. Product hardware has the capability to operate on Channel 12 and 13. However, all the operated channels cant be changed in the RF parameter via software. All channels have complied with all of the requirements sets out in FCC Part 15.247. Product hardware has the capability to operate on WiFi Channel 12 and 13, and meets the requirements of KDB 594280 D01 v02r01. Please note:

1.) By default, this device operates in a mode that is compliant with the U.S. requirements. 2.) This device will also use supplemental information such as geo-

location data to determine that it is operating outside the U.S., if necessary, to change its power. Such supplemental data will be derived from the following:

Global Navigation Satellite System (GNSS)7 sensors in the device Mobile Country Code (MCC),8 or MCC with a Mobile Network code

(MNC), received from a CMRS9 carrier and received directly by a receiver on the device Country information derived from multiple adjacent access points (for example using IEEE Std 802.11d provisions) may be permitted on case-by-case basis Other suitable geo-location data based on IP addresses or other reliable source. Name / Title: Connie Hong / Manager Signature:

Phone: +86-18626877736 Email: hongjiani@linzikg.com Date: 2023-12-11 Page 1 of 1 Rev.2.0