2A83V-LISTENINGT5Listening T5

Lingke Audio Technology (Guangdong) Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Lingke Audio Technology (Guangdong) Co., Ltd. Address: Room1601, 1610, 1611, No.2 Building, Bayview, Internationa, Station Road, Nancheng Street, Dongguan City, Guangdong Province, China Product Name: Listening T5 FCC ID: 2A83V-LISTENINGT5 Model(s): Lingke Listening T5, Lingke Listening T6 2.911(d)(5)(ii) Applicant filing We, [Lingke Audio Technology (Guangdong) Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 ,established pursuant to §1.50002 of this chapter,as an entity producing coveredcommunications equipment. Yours sincerely, Name:April Wu Date: Nov. 27, 2024 Title: Manager Company name: Lingke Audio Technology (Guangdong) Co., Ltd. Signature: NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Lingke Audio Technology (Guangdong) Co., Ltd. 2.911 (d)(7)USA Agentv1.3 Section 2.911(d)(7) USA Agent for Service of Process Company name:Lingke Audio Technology (Guangdong) Co., Ltd. Address: Room1601, 1610, 1611, No.2 Building, Bayview, Internationa, Station Road, Nancheng Street, Dongguan City, Guangdong Province, China Product Name: Listening T5 FCCID: 2A83V-LISTENINGT5 Model(s): Lingke Listening T5, Lingke Listening T6 2.911(d)(7) USA Designated Agent for Service of Process We,[Lingke Audio Technology (Guangdong) Co., Ltd.] (“theapplicant”) designate[USA MEIHUA TRADING INC ] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent:We Acknowledgeour consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledgeouracceptance of our 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 anyCommission-related administrative or judicial proceeding involving the equipment,whicheveris later. Agent obligation:We Acknowledgeourobligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email addressfor 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. Lingke Audio Technology (Guangdong) Co., Ltd. 2.911 (d)(7)USA Agentv1.3 USA Agent Company Name: USA MEIHUA TRADING INC FRN: 0033406166 Contact Name: Harley Quinn Address: 5379 Pine Valley Ct Boulder CO 80301 United States Telephone No: 1-312-363-9424 Applicant Company name: Lingke Audio Technology (Guangdong) Co., Ltd. Address: Room1601, 1610, 1611, No.2 Building, Bayview, Internationa, Station Road, Nancheng Street, Dongguan City, Guangdong Province, China FCC Registration Number(FRN):0033005943 FCC Grantee Code:2A83V Contact Name:April Wu Telephone No:+86 18588457171 Email:[email protected] Signature: Title: manager Signature: Title: Manager Date:2024.11.27 Date: Nov. 27, 2024 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference;Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Lingke Audio Technology (Guangdong) Co., Ltd. Agent Authorization Company:Lingke Audio Technology (Guangdong) Co., Ltd. Address: Room1601, 1610, 1611, No.2 Building, Bayview, Internationa, Station Road, Nancheng Street, Dongguan City, Guangdong Province, China Product Name: Listening T5 Model Number(s):Lingke Listening T5, Lingke Listening T6 Product Description:Listening T5 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: Nov. 27, 2024 Name: April Wu Title: Manager Company: Lingke Audio Technology (Guangdong) Co., Ltd.

Lingke Audio Technology (Guangdong) Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date:Nov. 27, 2024 Subject; Request for Confidentiality FCC ID: 2A83V-LISTENINGT5 To Whom It May Concern, Pursuant to the provisions of the Commission’s 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 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); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto 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:April Wu Title:Manager

Lingke Audio Technology (Guangdong) Co., Ltd. Model Difference Declaration To Whom It May Concern, We, Lingke Audio Technology (Guangdong) Co., Ltd. (Listening T5);ModelNumber:Lingke Listening T5, Lingke Listening T6;Model Difference:All model’s the function, software and electric circuit are the same, only with a product model named different. Test sample mode: Lingke Listening T5. Please contact me if you have any question. Signature: Date: Nov. 27, 2024 Name: April Wu Title: Manager

FCC ID LABEL: Ca: 20mm x 30mm Label Location FCC ID: 2A83V-LISTENINGT5

MPE ESTIMATION FCC ID: 2A83V-LISTENINGT5 1, Limit for General Population/ Uncontrolled Exposures Frequency Power density (mW/ cm 2 ) Averaging time(minutes) 300MHz----1.5GHz F/1500 30 1.5GHz---100GHz 1.0 30 2, Estimation Result Max PK Output power(dBm) Tune Up Power(dBm) Max Tune Up power(mW) Antenna Gain(dBi) Antenna Gain (linear) MPE (mW/cm²) BT 6.83 6±1(7) 5.01 5 3.16 0.00315 Note: Note: The estimation distance is 20cm Note: PK Output power= conducted power. Conducted power see the test report HK2410216165-E When the minimum test separation distance is >20 cm, a distance of 20 cm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.00315 which is< 1.0, RF Exposure testing is not required. -------The End-------

承认书项目表 内容 页数页码 NO. （ Number （ Page （ Contents ） ofPage ） Code ） 1 承认书封面（SpecCover） 11 2 承认书项目表（SpecItem） 12 3 工程成品图（ Drawing ） 13 4 电性测试报告（TestReports） 14 5 S 参数测试（ SParameter ） 15 6 增益测试（GainTest） 16 7 8 9 10 --- 11--- 12--- 电性测试报告 TestReports ElectricalProperties Frequency2.4GHz Impedance500hmNominal V.S.W.R1.92:1Max ReturnLoss-10dBMax RadiationOmni-directional Gain(Peak)5dBi CableLoss3.2dB/mMax@2450MHz PolarizationLinear,Vertical AdmittedPower1W Connectoripex PhysicalProperties AntennaMaterialFPCB Cable TypeO.D.1.13mm//250mm OperatingTemp.-10~+60 ̊C StorageTemp. -10~+70 ̊C CableColorBlack S I G N D A T E D E S C R I P T I O N B A P P R O V E R C D 3 3M 3M 2 1 11 1 R - C B - 1 1 3 B N B 0 3 0 B C I - 1 1 3 N o . F P C C o a x i a l C a b l e C o n n e c t o r N a m e 4 2 * 1 2 m m S H O W A - O . D . 1 . 1 3 m m B l a c k M i n i C o n n e c t o r M a t e r i a l Q t y P a r t N u m b e r T I T L E : 2 . 4 G H z A n t e n n a P A R T N O . : A P P R O V E D B Y D W G N A M E : N B 0 3 0 - 1 3 B - I X 2 5 0 . D W G D E S I D N E D B Y U N I T S : m m T o l e r a n c e C H E C K E D B Y S C A L E : 1 / 1 R E V I S I O N : A j e f f 2 0 1 4 - 0 2 - 2 6 2 0 1 4 - 0 2 - 2 6 l e o n 2 0 1 4 - 0 2 - 2 6 Y D X . X ± 0 . 2 0 X . X X ± 0 . 1 0 X ° ± 3 ° 东 莞 市 脉 讯 电 子 有 限 公 司 S 参数测试 SParameterTest AgilentE5071C 增益测试 GainTest Antenna Radiation Pattern VS Gain

Page 1 of 53 Report No.: HK2410216165-E FCC Test Report Test Report On Behalf of Lingke Audio Technology (Guangdong) Co., Ltd. For Listening T5 Model No.: Lingke Listening T5, Lingke Listening T6 FCC ID: 2A83V-LISTENINGT5 Prepared For: Lingke Audio Technology (Guangdong) Co., Ltd. Room1601, 1610, 1611, No.2 Building, Bayview, Internationa, Station Road, Nancheng Street, Dongguan City, Guangdong Province, China Prepared By: Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Oct. 21, 2024 ~ Nov. 07, 2024 Date of Report: Nov. 07, 2024 Report Number: HK2410216165-E Page 2 of 53 Report No.: HK2410216165-E Test Result Certification Applicant’s Name .................. : Lingke Audio Technology (Guangdong) Co., Ltd. Address .................................. : Room1601, 1610, 1611, No.2 Building, Bayview, Internationa, Station Road, Nancheng Street, Dongguan City, Guangdong Province, China Manufacturer's Name ........... : Lingke Audio Technology (Guangdong) Co., Ltd. Address .................................. : Room1601, 1610, 1611, No.2 Building, Bayview, Internationa, Station Road, Nancheng Street, Dongguan City, Guangdong Province, China Product Description Trade Mark ............................. : Product Name ......................... : Listening T5 Model and/or Type Reference : Lingke Listening T5, Lingke Listening T6 Standards .............................. : 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., 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. Date of Test .................................... . Date (s) of Performance of Tests .... . Oct. 21, 2024 ~ Nov. 07, 2024 Date of Issue .................................... Nov. 07, 2024 Test Result ........................................ Pass Testing Engineer Len Liao Technical Manager Sliver Wan Authorized Signatory Jason Zhou Page 3 of 53 Report No.: HK2410216165-E Table of Contents Page 1. Summary ............................................................................................................. 5 1.1 Test Standards ............................................................................................................................ 5 1.2 Test Description .......................................................................................................................... 5 1.3 Test Facility ................................................................................................................................. 6 1.4 Statement of the Measurement Uncertainty ............................................................................. 6 2. General Information ............................................................................................. 7 2.1 Environmental Conditions .......................................................................................................... 7 2.2 General Description of EUT ........................................................................................................ 7 2.3 Description of Test Modes and Test Frequency .......................................................................... 8 2.4 Equipments Used during the Test ............................................................................................... 9 2.5 Related Submittal(s) / Grant (s) ................................................................................................ 10 2.6 Modifications ............................................................................................................................ 10 2.7 Description of Test Setup .......................................................................................................... 10 2.8 Description of Support Units .................................................................................................... 11 3. Test Conditions and Results ................................................................................ 12 3.1 Conducted Emissions Test ........................................................................................................ 12 3.2 Radiated Emissions and Band Edge .......................................................................................... 15 3.3 Maximum Peak Conducted Output Power ............................................................................... 26 3.4 20dB Bandwidth ....................................................................................................................... 27 3.5 Frequency Separation ............................................................................................................... 31 3.6 Number of Hopping Frequency ................................................................................................ 33 3.7 Time of Occupancy (Dwell Time) ............................................................................................. 35 3.8 Out‐of‐Band Emissions ............................................................................................................. 39 3.9 Pseudorandom Frequency Hopping Sequence ........................................................................ 49 3.10 Antenna Requirement .............................................................................................................. 50 4. Test Setup Photos of the EUT ............................................................................. 51 5. Photos of the EUT .............................................................................................. 53 Page 4 of 53 Report No.: HK2410216165-E **…

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Page 40 of 53 Report No.: HK2410216165-E GFSK CH00 CH39 Page 41 of 53 Report No.: HK2410216165-E CH78 Page 42 of 53 Report No.: HK2410216165-E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 43 of 53 Report No.: HK2410216165-E π/4DQPSK CH00 CH39 Page 44 of 53 Report No.: HK2410216165-E CH78 Page 45 of 53 Report No.: HK2410216165-E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 46 of 53 Report No.: HK2410216165-E 8DPSK CH00 CH39 Page 47 of 53 Report No.: HK2410216165-E CH78 Page 48 of 53 Report No.: HK2410216165-E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 49 of 53 Report No.: HK2410216165-E 3.9 Pseudorandom Frequency Hopping Sequence Test Applicable For 47 CFR Part 15C section 15.247 (a) (1): Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hop-ping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400–2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hop-ping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals. EUT Pseudorandom Frequency Hopping Sequence Requirement The pseudorandom frequency hopping sequence may be generated in a nice-stage shift register whose 5 th and 9 th stage outputs are added in a modulo-two addition stage. And the result is fed back to the input of the first stage. The sequence begins with the first one of 9 consecutive ones, for example: the shift register is initialized with nine ones. ● Number of shift register stages:9 ● Length of pseudo-random sequence:29-1=511 bits ● Longest sequence of zeros:8(non-inverted signal) An example of pseudorandom frequency hopping sequence as follows: Each frequency used equally one the average by each transmitter. The system receiver have input bandwidths that match the hopping channel bandwidths of their corresponding transmitter and shift frequencies in synchronization with the transmitted signals. Page 50 of 53 Report No.: HK2410216165-E 3.10 Antenna Requirement Standard Applicable For intentional device, according to FCC 47 CFR Section 15.203, 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. And according to FCC 47 CFR Section 15.247, if transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi. Refer to Statement Below for Compliance. The manufacturer may design the unit so that the user can replace a broken antenna, but the use of a standard antenna jack or electrical connector is prohibited. Further, this requirement does not apply to intentional radiators that must be professionally installed. Antenna Connected Construction The antenna used in this product is a FPC antenna, need professional installation, not easy to remove. It conforms to the standard requirements. The directional gains of antenna used for transmitting is 5dBi. Antenna Page 51 of 53 Report No.: HK2410216165-E 4. Test Setup Photos of the EUT Radiated Emission Page 52 of 53 Report No.: HK2410216165-E Conducted Emission Page 53 of 53 Report No.: HK2410216165-E 5. Photos of the EUT Reference to the report: ANNEX A of External photos and ANNEX B of Internal photos ---------End of test report---------