2BKMS-Q2SPEAKER

(Meizhou Lezhiyin Technology Co., Ltd) (August 29, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BKMS-Q2) [Meizhou Lezhiyin Technology Co., Ltd] (“the applicant”) certifies 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. Sincerely, (Applicant signature) (Applicant printed name) Sifeng zeng (Meizhou Lezhiyin Technology Co., Ltd) (August 29, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BKMS-Q2) [Meizhou Lezhiyin Technology Co., Ltd] (“the applicant”) certifies 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. Sincerely, (Applicant signature) (Applicant printed name) Sifeng zeng

Applicant U.S.AgentDesignationforServiceofProcess ATTENTION:FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046USA REGARDING:FCCCertification–Section2.911(d)(7)Information DesignatedU.S.Agent CompanyName:MarsRegisterAgentLLC ContactName:JessiePeng StreetAddress:8932MissionDrunit207 City/State/Zip:Rosemead,CA91770 TelephoneNo:+18185797288 Email:[email protected] FRN#:FRN:0033790684 Thisletteristoconfirmthatwe(MarsRegisterAgentLLC)haveacceptedtheresponsibilityto actastheDesignatedU.S.AgentforServiceofProcessasrequiredbysection47CFR2.911(d) (7)onbehalfoftheApplicant（applicant）notedbelow. U.S.AgentSignature: Date:31/08/2024 Signedby(PrintedName/Title):JessiePeng/Founder *Thislettermustbedatedwithin1-year(updateifothertermsapply)ofthedatetheapplication issubmittedtotheTCBfordevicecertification. TheApplicantconfirmsitsexplicitconsentandacknowledgesthattheymustmaintainanagent fornolessthanoneyearafterterminatingallmarketingandimportationORtheconclusionof anyCommission-relatedproceedinginvolvingtheequipment.Theapplicantfurther acknowledgestheirresponsibilitytoinformtheFCCwhenevertheDesignatedU.S.Agent informationabovechanges. Applicant Companyname:MeizhouLezhiyinTechnologyCo.,Ltd FCCID:2BKMS-Q2 FRN:0035877349 ContactName:SifengZeng StreetAddress:TheintersectionsouthofPingdongRoadandTownshipRoad167,DongshiTown, PingyuanCounty City/Province/Zip:MeizhouGuangdong514600 TelephoneNo:86-13549135386 Email:[email protected] ApplicantSignature: Date:31/08/2024 Signedby(PrintedName/Title):SifengZeng

Meizhou Lezhiyin Technology Co., Ltd Model Difference Data：August 29, 2024 Product description: SPEAKER Model name: Q2, E-3568, E-3077, E-1096, E-4050, E-4905, E-3403, E-3404, E-3303, E-3510, Q1, E-1080, E-3076, E-3075, E-3576, E-3572, E-3105, E- 3080, E-3102 Trade Name: N/A FCC ID: 2BKMS-Q2 All the model are the same circuit and RF module, only the name and appearance are different. Regards Sincerely Client’s signature : Client’s name / title : Sifeng zeng（Manager） Contact information / address：The intersection south of Pingdong Road and Township Road 167, Dongshi Town, Pingyuan County

Meizhou Lezhiyin Technology Co., Ltd (August 29, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (SPEAKER / Q2, E-3568, E-3077, E- 1096, E-4050, E-4905, E-3403, E-3404, E-3303, E-3510, Q1, E-1080, E-3076, E- 3075, E-3576, E-3572, E-3105, E-3080, E-3102/ FCC ID: 2BKMS-Q2) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Sifeng zeng Title: Manager

Meizhou Lezhiyin Technology Co., Ltd (August 29, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Sifeng zeng Title: Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: Q2 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2BKMS-Q2 Model No.: Q2

Shenzhen CTB Testing Co., Ltd. FCC ID:2BKMS-Q2 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. EDR: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -0.032 0.99 0±1 1.00 1.26 <5 0.39023 3.00 YES 2.441 0.364 1.09 0±1 1.00 1.26 <5 0.39338 3.00 YES 2.480 0.395 1.10 0±1 1.00 1.26 <5 0.39651 3.00 YES 2.402 0.652 1.16 0±1 1.00 1.26 <5 0.39023 3.00 YES 2.441 1.207 1.32 1±1 2.00 1.58 <5 0.49524 3.00 YES 2.480 1.364 1.37 1±1 2.00 1.58 <5 0.49918 3.00 YES 2.402 1.185 1.31 1±1 2.00 1.58 <5 0.49127 3.00 YES 2.441 1.73 1.49 1±1 2.00 1.58 <5 0.49524 3.00 YES 2.480 1.632 1.46 1±1 2.00 1.58 <5 0.49918 3.00 YES GFSK π /4DQPSK 8DQPSK BLE:1M Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -0.181 0.960±11.001.26<50.390233.00YES 2.44 0.296 1.070±11.001.26<50.393303.00YES 2.480 0.416 1.100±11.001.26<50.396513.00YES GFSK 2M Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -0.178 0.960±11.001.26<50.390233.00YES 2.44 0.293 1.070±11.001.26<50.393303.00YES 2.480 0.378 1.090±11.001.26<50.396513.00YES GFSK Conclusion: For the max result : 0.49918≤ FCC Limit 3.0 for 1g SAR.

TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: SPEAKER FCC ID: 2BKMS-Q2 Trademark: N/A Model Number: Q2, E-3568, E-3077, E-1096, E-4050, E-4905, E-3403, E-3404, E-3303, E-3510, Q1, E-1080, E-3076, E-3075, E-3576, E-3572, E-3105, E-3080, E-3102 Prepared For: Meizhou Lezhiyin Technology Co., Ltd Address: The intersection south of Pingdong Road and Township Road 167, Dongshi Town, Pingyuan County Manufacturer: Meizhou Lezhiyin Technology Co., Ltd Address: The intersection south of Pingdong Road and Township Road 167, Dongshi Town, Pingyuan County Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Aug. 20, 2024 Sample tested Date: Aug. 20, 2024 to Aug. 22, 2024 Issue Date: Aug. 22, 2024 Report No.: CTB240823044RFX Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240823044RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 41 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................................................................................... 3 2. TEST SUMMARY ............................................................................................................................. 4 3. MEASUREMENT UNCERTAINTY ................................................................................................... 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................. 6 4.1 Product Information ............................................................................................................................ 6 4.2 Test Setup Configuration ................................................................................................................... 6 4.3 Support Equipment ............................................................................................................................ 6 4.4 Channel List ....................................................................................................................................... 7 4.5 Test Mode .......................................................................................................................................... 7 4.6 Test Environment ............................................................................................................................... 7 5. TEST FACILITY AND TEST INSTRUMENT USED ......................................................................... 8 5.1 Test Facility ........................................................................................................................................ 8 5.2 Test Instrument Used ......................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION .................................................................................. 11 6.1 Block Diagram Of Test Setup ........................................................................................................... 11 6.2 Limit .................................................................................................................................................. 11 6.3 Test procedure ................................................................................................................................. 11 6.4 Test Result ....................................................................................................................................... 13 7. RADIATED SPURIOUS EMISSION ............................................................................................... 15 7.1 Block Diagram Of Test Setup ........................................................................................................... 15 7.2 Limit .................................................................................................................................................. 15 7.3 Test procedure ................................................................................................................................. 16 7.4 Test Result ....................................................................................................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ................................................ 24 8.1 Block Diagram Of Test Setup ........................................................................................................... 24 8.2 Limit .................................................................................................................................................. 24 8.3 Test procedure ................................................................................................................................. 24 8.4 Test Result ....................................................................................................................................... 25 9. COUDUCTED OUTPUT POWER .......................…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dB Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: Q2 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions