FCC ID: 2A2P9-EFSR8258 Bluetooth Module

MR500-UV-BT Product Specification TLSR8258 2.4GHz summary 1.1 Product Introduction MR500-UV-BT TELINK TLSR8258 SOC 2.4GHz 48Mhz 32 MCU 12dBm, 2uA The MR500-UV-BT is a small size, low power consumption, high reliability Bluetooth module designed and produced by EcoFlow Inc. based on TELINK TLSR8258 wireless SOC, operating in the 2.4GHz frequency band. The chip comes with a 32-bit high-performance MCU with a maximum transmission power of 12dBm and a minimum sleep current of 2uA. 1.2 512K flash64K RAM 100 Large capacity: 512K capacity flash, 64K capacity RAM, network nodes can scale to over 100 Role switching:

Users can use serial port commands to allow devices to switch between terminal and sleep terminal types at will MESH Support multiple network topologies: peer-to-peer, star network, MESH network;

Network self-healing: If an intermediate node in the network is lost, other networks will automatically join or maintain the original network Serial Port Configuration: The module has built-in serial port instructions, and users can configure (view) the parameters and functions of the module through the serial port instructions. 115200 One click recovery of baud rate: If the user forgets or does not know the baud rate, this function can be used to restore the default baud rate to 115200 10 Serial port wake-up reception: supports the serial port wake-up reception function. When the module is in a sleep state and receives a frame of data less than or equal to 10 bytes, it will be awakened. This data is a wake-up frame used to wake up the module and will not be processed as data. Module reset: Users can reset the module through serial commands Restore factory settings: Users can restore the factory settings of the module through serial commands Over the air configuration: Users can remotely configure other devices in the network using over the air configuration commands Specification parameters 2.1 Limit parameters main parameter V supply voltage working temperature function 1.9 3.6

-40

+85 Permanently burned out module exceeding 3.6V Industrial grade 2.2 Working parameters main parameter Working voltage

(V) Communication level (V) Working temperature () Operating frequency (MHz) Air Speed (bps) main parameter min 1.9

-40 2405 function nom 3.3 3.3

max 3.6

+85 2480 250K Description Note 3.3VGuaranteed output power There is a risk of burning out when using 5V TTL Industrial grade design Support for frequency band ISM remarks Reference distance Packaging method Interface method Full name of IC FLASH RAM kernel Overall dimensions Antenna interface 30m SMD type 2.5mm TLSR8258F512ET48 512KB 64KB 32 MCU 36*26mm PCB Stamp hole Equivalent impedance 50 Mechanical dimensions and pin definitions Pin number 1 2 Pin name 3.3V nWakeupFromBT Pin direction input input Pin purpose Module power supply Reserved, directly 3 4 5 6 7 8 9 nLedFromBT output TX RX BT_Matching GND NC NC output input input

suspended Reserved, directly suspended Serial port sending end TX Serial port receiver RX Reserved, directly suspended Ground wire, connected to the power reference ground Reserved, directly suspended Reserved, directly suspended FCC STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference, and 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. 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. FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. The device can be used in portable exposure condition without restriction. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules FCC Part 15 Subpart C 15.247 & 15.207 & 15.209 2.3 Specific operational use conditions Operation Frequency:2402~2480MHz Number of Channel:40 Channels Modulation Type:GFSK Antenna Type:PCB antenna Antenna Gain(Peak):3.32 dBi (Provided by customer) The module can be used for mobile or portable applications with a maximum 3.32dBi antenna. The host manufacturer installing this module into their product must ensure that the final composit product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operaition. The host manufacturer has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user's manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. 2.4 Limited module procedures The EF-SR8258 module is limited module, which is used with the installation requirement as described as above. Any other alternative method on using EF-SR8258 module should get approval with reviews of detailed test data or host designs, especially RF exposure evaluation part.. 2.5 Trace antenna designs Not applicable. The module has its own antenna, and doesnt need a hosts printed board microstrip trace antenna etc. 2.6 RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. The device can be used in portable exposure condition without restriction. And if RF exposure statement or module layout is changed, then the host product manufacturer required to take responsibility of the module through a change in FCC ID or new application. The FCC ID of the module cannot be used on the final product. In these circumstances, the host manufacturer will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. 2.7 Antennas Antenna Specification are as follows:

Antenna Type:PCB antenna Antenna Gain(Peak):3.32 dBi (Provided by customer) This device is intended only for host manufacturers under the following conditions:

The transmitter module may not be co-located with any other transmitter or antenna;

The module shall be only used with the External antenna(s) that has been originally tested and certified with this module. The antenna must be either permanently attached or employ a unique antenna coupler. As long as the conditions above are met, further transmitter test will not be required. However, the host manufacturer is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). 2.8 Label and compliance information Host product manufacturers need to provide a physical or e-label stating Contains FCC ID 2A2P9-EFSR8258 With their finished product. 2.9 Information on test modes and additional testing requirements Operation Frequency:2402~2480MHz Number of Channel:40 Channels Modulation Type:GFSK Antenna Type:PCB antenna Antenna Gain(Peak):3.32 dBi (Provided by customer) Host manufacturer must perfom test of radiated & conducted emission and spurious emission, etcaccording to the actual test modes for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product. Only when all the test results of test modes comply with FCC requirements, then the end product canbe sold legally. 2.10 Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for FCC Part 15 Subpart C 15.247 & 15.207 & 15.209and that the host product manufacturer is responsible for compliance to any other FCC rules that applyto the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. Compliance of this device in all final host configurations is the responsibility of the Grantee. OEM integrators and end-users must be provided with specific operating instructions for satisfying RF exposure compliance. OEM integrators are instructed to ensure that the end user has no manual instructions to remove or install the device.

EcoFlow Inc. Declaration concerning Antenna Specification It is hereby declared that the product Model No.: EF-SR8258 FCC ID : 2A2P9-EFSR8258 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for Internal antenna type(s) described below:

Model No. of antenna: EF8258 Type of antenna:

Gain of the antenna:

Frequency range:

PCB antenna 3.32 dBi 2.4G: 2400-2500MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. EcoFlow Inc. Plant A202, Founder Technology Industrial Park, Shiyan Sub-district, Bao'an District, Shenzhen,Guangdong, 518000, China Shenzhen,Guangdong 518000 China Date: 4/14/2023 Company name:

Address:

City:

ZIP / Postal code:

Country:

Place:

Signature:

version01

Report No.: BL-SZ2330465-901 TEST REPORT Applicant:

EcoFlow Inc. Address:

Plant A202, Founder Technology Industrial Park, Shiyan Sub-district, Baoan District Shenzhen, Guangdong 518000 China Equipment Type:

MR511 BLE PCB Antenna Model Name:

EF8258 Brand Name:

N/A Test Standard:

IEEE Std 149-2021 Sample Arrival Date: Mar. 08, 2023 Test Date:

Mar. 08, 2023 Date of Issue:

Mar. 13, 2023 ISSUED BY:

Shenzhen BALUN Technology Co., Ltd. Tested by: Mai Jintian Checked by: Zou Liu Approved by: Tolan Tu

(Testing Director) _______________ _______________ _______________ Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 1 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 Revision History Version Issue Date Rev. 01 Mar. 13, 2023 Revisions Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 3 1.1 Test Laboratory ................................................................................................................... 3 1.2 Test Location ....................................................................................................................... 3 2 PRODUCT INFORMATION ....................................................................................................... 4 2.1 Applicant Information ........................................................................................................... 4 2.2 Manufacturer Information .................................................................................................... 4 2.3 Factory Information ............................................................................................................. 4 2.4 General Description for Equipment under Test (EUT) ......................................................... 4 2.5 Ancillary Equipment ............................................................................................................. 4 2.6 Technical Information .......................................................................................................... 4 3 SUMMARY OF TEST RESULTS ............................................................................................... 5 3.1 Test Standards .................................................................................................................... 5 3.2 Test Verdict ......................................................................................................................... 5 3.3 Test Uncertainty .................................................................................................................. 5 4 GENERAL TEST CONFIGURATIONS ...................................................................................... 6 4.1 Test Condition ..................................................................................................................... 6 4.2 Test Equipment List ............................................................................................................. 6 4.3 Test Setup ........................................................................................................................... 7 ANNEX A TEST RESULTS ........................................................................................................... 8 A.1 Gain and Efficiency ............................................................................................................. 8 ANNEX B RADIATION PATTERN ................................................................................................ 9 ANNEX C TEST SETUP PHOTO ................................................................................................ 12 ANNEX D EUT PHOTO .............................................................................................................. 13 Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 2 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 1 GENERAL INFORMATION 1.1 Test Laboratory Name Address Shenzhen BALUN Technology Co., Ltd. Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Phone Number

+86 755 6685 0100 1.2 Test Location Name Shenzhen BALUN Technology Co., Ltd. Location Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1/F, Building B, Ganghongji High-tech Intelligent Industrial Park, No. 1008, Songbai Road, Yangguang Community, Xili Sub-district, Nanshan District, Shenzhen, Guangdong Province, P. R. China Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 3 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 2 PRODUCT INFORMATION 2.1 Applicant Information Applicant Address EcoFlow Inc. Plant A202, Founder Technology Industrial Park, Shiyan Sub-district, Baoan District Shenzhen, Guangdong 518000 China Contact Person E-mail Address Devin Li Devin Li@ecoflow.com 2.2 Manufacturer Information Manufacturer EcoFlow Inc. Address Plant A202, Founder Technology Industrial Park, Shiyan Sub-district, Baoan District Shenzhen, Guangdong 518000 China 2.3 Factory Information Factory Address N/A N/A 2.4 General Description for Equipment under Test (EUT) MR511 BLE PCB Antenna EUT Name Model Name Under Test EF8258 Antenna Type Dimensions 8*12mm PCB Antenna 2.5 Ancillary Equipment N/A 2.6 Technical Information Frequency Range 2400MHz ~ 2500MHz Test Frequencies 2400MHz, 2410MHz, 2420MHz, 2430MHz, 2440MHz, 2450MHz, 2460MHz, 2470MHz, 2480MHz, 2490MHz, 2500MHz. Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 4 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 3 SUMMARY OF TEST RESULTS 3.1 Test Standards No. 1 Identity Document Title IEEE Std 149-2021 IEEE Standard Test Procedures for Antennas 3.2 Test Verdict Report Section ANNEX A.1 ANNEX B 3.3 Test Uncertainty Description Gain and Efficiency Radiation Pattern Remark

The uncertainty is calculated using the methods suggested in the "Guide to the Expression of Uncertainty in Measurement" (GUM) published by ISO. Item VSWR(S11) Gain Uncertainty 0.61 1.92dB Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 5 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 4 GENERAL TEST CONFIGURATIONS 4.1 Test Condition Selected Values During Tests Ambient Pressure(KPa) Temperature() Voltage Relative Humidity (%) 101 22.1 N/A 34 Environment Parameter Normal Temperature, Normal Voltage

(NTNV) 4.2 Test Equipment List Description Manufacturer Model Serial No. Cal. Date Cal. Due SG24 Multi-probe Antenna Measurement System Vector Network Analyzer SATIMO SG24-L 1101855-

0001 2021.11.12 2024.11.11 Agilent E5071B MY42404001 2022.04.02 2023.04.01 Description Manufacturer Test Software MVG Name SPM Version V 1.8 Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 6 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 4.3 Test Setup 4.3.1 Antenna gain, efficiency and radiation pattern test setup Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 7 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 ANNEX A TEST RESULTS A.1 Gain and Efficiency Frequency 2400MHz 2410MHz 2420MHz 2430MHz 2440MHz 2450MHz 2460MHz 2470MHz 2480MHz 2490MHz 2500MHz Gain (dBi) Efficiency (%) 2.45 2.37 2.29 2.34 2.55 3.00 3.01 2.87 3.04 3.29 3.32 68%

71%

71%

72%

73%

76%

77%

78%

79%

80%

79%

Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 8 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 ANNEX B RADIATION PATTERN B.1 3D Pattern B1.1 3D Pattern for 2400MHz B1.2 3D Pattern for 2450MHz Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 9 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 B1.3 3D Pattern for 2500MHz Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 10 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 B.2 1D Radiation Pattern B2.1 PHI=0 B2.2 PHI=90 B2.3 THETA=90 Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 11 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 ANNEX C TEST SETUP PHOTO Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 12 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 ANNEX D EUT PHOTO Antenna Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 13 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2330465-901 Statement 1. The laboratory guarantees the scientificity, accuracy and impartiality of the test, and is responsible for all the information in the report, except the information provided by the customer. The customer is responsible for the impact of the information provided on the validity of the results. 2. The report without China inspection body and laboratory Mandatory Approval (CMA) mark has no effect of proving to the society. 3. For the report with CNAS mark or A2LA mark, the items marked with "" are not within the accredited scope. 4. This report is invalid if it is altered, without the signature of the testing and approval personnel, or without the inspection and testing dedicated stamp or test report stamp. 5. The test data and results are only valid for the tested samples provided by the customer. 6. This report shall not be partially reproduced without the written permission of the laboratory. 7. Any objection shall be raised to the laboratory within 30 days after receiving the report.

--END OF REPORT--

Tel: +86-755-66850100 E-mail: qc@baluntek.com Page No. 14 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China

- EcoFlow Inc. -

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 U.S. Agent Designation 4/12/23

[EcoFlow Inc.] 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:

[2A2P9-EFSR8258]):

Name and company of U.S. agent: EcoFlow Technology Inc Physical U.S. address of agent: 200 CONTINENTAL DRIVE SUITE 401, OFFICE 434, NEW AR DE19713, NEWARK, DELAWARE, 19713, USA FRN of U.S. agent: 0033593781 Email address of U.S. agent: devin.li@ecoflow.com

[EcoFlow Technology Inc] acknowledges their obligation to accept service of process on behalf of

[EcoFlow Inc.].

[EcoFlow Inc.] 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). Sincerely, Signature

[Vicky Guan]

[R & D Engineer]

[EcoFlow Inc.]

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. 2 _ t n e g A _ S U 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.

l e d o m

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- EcoFlow Inc. -

Signature

[Johnson]

[EcoFlow Technology Inc]

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.

- EcoFlow Inc. -

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 4/12/23 To whom it may concern:

We, [EcoFlow Inc.], hereby certify that the equipment for which authorization is sought (FCC ID:

2A2P9-EFSR8258) is not covered equipment prohibited from receiving an equipment authorization pursuant to 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist) as an entity producing covered equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(b) and (d)(5) and (6). Sincerely, 2 0 V

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[Vicky Guan]

[R & D Engineer]

EcoFlow Inc. 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.

FCC limited Modular Approval Request To the FCC or FCC TCB handling this application Hereby we, Company (grantee) EcoFlow Inc. Addresss Plant A202, Founder Technology Industrial Park, Shiyan Sub-district, Bao'an District, Shenzhen,Guangdong, 518000, China City / ZIP / State / Country Shenzhen,Guangdong, 518000, China request limited modular approval for the certification of our equipment within this application, identified by:

FCC ID:

2A2P9-EFSR8258 The table below contains justification for modular approval of this equipment. Requirement per DA 00-1407 1. The modular transmitter must have its own RF shielding. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with Part 15 requirements under conditions of excessive data rates or over-modulation. 2. The modular transmitter must have its own power supply regulation. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable).. 3. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. 4. The modular transmitter must be labeled with its own FCC ID number, and, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: 2A2P9-EFSR8258 or Contains FCC ID: 2A2P9-EFSR8258. Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. 5. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 6. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimetre wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. Explanation from grantee No RF shielding. The modular have buffered modulation/data inputs. The modular transmitter have its own power supply regulation.(DC 3.3V) Yes. The EUT has a PCB antenna. The module was tested in a stand-alone configuration, please refer to the Setup Photo for the detail Please refer to label sample exhibit - host labeling is described in integration manual The required FCC rule has been fulfilled and all the instructions for the maintaining compliance have been clearly stated in the User Manual. The portable exposure evaluation with 5mm is submitted for the compliance of RF Exposure requirement. Attestation (by grantee) City and Country:

Date:

Name:

(this must be a person) Function:

Signature:

(or official company stamp) Shenzhen /China 2023-04-14 Vicky Guan R & D Engineer