2AI4QPOCOMU-RPoco MU

RF warning for Portable device: The device has been evaluated to meet general RF exposure requirment. The device can be used in portable exposure condition without restriction. ( FCC ID: 2AI4QPOCOMU-L , FCC ID: 2AI4QPOCOMU-R )

Xiamen New Sound Technology Co,. Ltd ADD: 1st & 2nd Floor,No.13 of Xiang yue Rd, Torch Hi-Tech Development Zone,Xiang An District, Xiamen, China TEL: 0592-3921189 FAX: 0592-3776908 Mail Address: [email protected] Date: 2023-06-29 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, The chipset PAU1825B1 install in our product (Product description: Poco MU, Model name: Poco MU803, Poco MU801, Poco MU806, Poco MU808, FCC ID: 2AI4QPOCOMU-R), that only BDR, EDR and BLE 1M were activated, other functions were disabled by software. Sincerely, Signature: Printed Name: Jianyou Xie Title: Manager

CFR 47 §2.911(d)(7) U.S Agent U.S. AGENT LETTER OF ATTESTATION Date: 2023-06-29 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2AI4QPOCOMU-R Xiamen New Sound Technology Co,. Ltd certifies that, as of the date of the filing of the application, IMHear Corporation is our designated U.S. agent for service of process for the above referenced FCC ID. Xiamen New Sound Technology Co,. Ltd accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. IMHear Corporation accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: IMHear Corporation Address: 1503 Brook Dr. Downers Grove, IL US 60515 Tel.: 630 3959628 Email: [email protected] Signed by (printed name): HONG LONDON Signature: Applicant: Xiamen New Sound Technology Co,. Ltd Add: 1st & 2nd Floor,No.13 of Xiang yue Rd, Torch Hi-Tech Development Zone,Xiang An District, Xiamen, China Tel: 0592-3921189 Email: [email protected] Signed by (printed name): Jianyou Xie Signature:

QA-FR-170-B Xiamen New Sound Technology Co,. Ltd ADD: 1st & 2nd Floor,No.13 of Xiang yue Rd, Torch Hi-Tech Development Zone,Xiang An District, Xiamen, China TEL: 0592-3921189 FAX: 0592-3776908 Mail Address: [email protected] FCC Authorization Date: 2023-06-29 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We , Xiamen NewSound Technology Co., Ltd, Hereby authorizes China Certification ICT Co., Ltd (Dongguan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Client’s signature Contact Person: Jianyou Xie Title: Manager

QA-FR-171-A Xiamen New Sound Technology Co,. Ltd ADD: 1st & 2nd Floor,No.13 of Xiang yue Rd, Torch Hi-Tech Development Zone,Xiang An District, Xiamen, China TEL: 0592-3921189 FAX: 0592-3776908 Mail Address: [email protected] FCC Confidential Authorization Date: 2023-06-29 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AI4QPOCOMU-R In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Xiamen NewSound Technology Co., Ltd hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Contact Person: Jianyou Xie Title: Manager

QA-FR-169-B Xiamen New Sound Technology Co,. Ltd ADD: 1st & 2nd Floor,No.13 of Xiang yue Rd., Torch Hi-Tech Development Zone,Xiang An District,Xiamen,China TEL: 0592-3921189 FAX: 0592-3776908 E-mail: [email protected] To FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia,MD 21046 Dear Sir/Madam, We, Xiamen New Sound Technology Co,. Ltd, hereby submits justification for placing the FCC ID label to the charging box. According to the FCC Regulation and Guidence (KDB Publication 784748 D01 v09R01) allows for the FCC to be removed to charging box if the device is unquestionably too small for the FCC ID label to be printed. The measurement of headset: Length (19.0mm)*Width (16.0mm)*High (21.3mm) , charging box:70.1(mm)*42.6 (mm)*32.9(mm).Refer to the above quote, as the headset are too small for the FCC ID label to be printed, so the FCC ID label will be moved to the charging box. For details, please see below photos: Headset size and photo : Charging box size and photo: Label: QA-FR-169-B Sincerely, Printed Name: Jianyou Xie Title: Manager

Xiamen New Sound Technology Co,. Ltd ADD: 1st & 2nd Floor,No.13 of Xiang yue Rd, Torch Hi-Tech Development Zone,Xiang An District, Xiamen, China TEL: 0592-3921189 FAX: 0592-3776908 Mail Address: [email protected] DECLARATION OF SIMILARITY Date: 2023-06-29 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: We, Xiamen NewSound Technology Co., Ltd, hereby declare that the product: Poco MU, FCC ID: 2AI4QPOCOMU-R. model: Poco MU801, Poco MU806, Poco MU808 are electrically identical with the model: Poco MU803 which was tested by China Certification ICT Co., Ltd (Dongguan) with the same electromagnetic emissions and electromagnetic compatibility characteristics. A description of the differences between those models and that are declared similar are as follows: They are the same product, just different model name, the rest are the same. Please contact me should there be need for any additional clarification or information. Best Regards, Signature: Contact Person: Jianyou Xie Title: Manager

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Charger Box

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230633906-00A Page 36 of 36 5. RF EXPOSURE EVALUATION 5.1 Applicable Standard According to§15.247(i) and §1.1310, systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB447498 D01 General RF Exposure Guidance v06: The 1-g 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)] ꞏ [√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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. 5.2 Measurement Result For BLE: The max conducted power including tune-up tolerance is- 0.5dBm (0.89 mW). [(max. power of channel, mW)/(min. test separation distance, mm)][√f(GHz)] =0.89/5*(√2.480) = 0.4< 3.0 Result: Compliant. The stand-alone SAR evaluation is not necessary. ===== END OF REPORT ====

front rear Antenna Manufacture:Hongji Wireless Communication (Shenzhen) Co., Ltd Address:Room 211-212, 2nd Floor, Kushi Science and Technology Innovation Center, Antenna Drawing No. 4006 Wuhe Avenue, Longgang District, Shenzhen, China Electrical and mechanical performance specifications Matching circuit diagram parameter Passive efficiency Active OTA data

TEST REPORT Applicant: Xiamen New Sound Technology Co,. Ltd Address: 1st & 2nd Floor,No.13 of Xiang yue Rd, Torch Hi-Tech Development Zone, Xiang An District, Xiamen, China FCC ID: 2AI4QPOCOMU-R Product Name: Poco MU Standard(s): 47 CFR Part 15, Subpart C(15.247) ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR230633906-00A Date Of Issue: 2023/6/9 Reviewed By: Julie Tan Title: RF Engineer Approved By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230633906-00A Page 2 of 36 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR230633906-00A Page 3 of 36 CONTENTS T EST FACILITY .......................................................................................................................................... 2 DECLARATIONS .......................................................................................................................................... 2 DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 7 1.2.1 EUT Operation Condition: ............................................................................................................................. 7 1.2.2 Support Equipment List and Details .............................................................................................................. 7 1.2.3 Support Cable List and Details ...................................................................................................................... 7 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 7 1.3 MEASUREMENT UNCERTAINTY .......................................................................................................... 8 2. SUMMARY OF TEST RESULTS ............................................................................................ 9 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 10 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 10 3.1.1 Applicable Standard ..................................................................................................................................... 10 3.1.2 EUT Setup.................................................................................................................................................... 11 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 11 3.1.4 Test Procedure ............................................................................................................................................. 12 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 12 3.2 RADIATION SPURIOUS EMISSIONS .................................................................................................... 13 3.2.1 Applicable Standard ..................................................................................................................................... 13 3.2.2 EUT Setup.................................................................................................................................................... 13 3.2.3 EMI Test Receiver & Spectrum Analyzer Setup ......................................................................................... 14 3.2.4 Test Procedure ............................................................................................................................................. 14 3.2.5 Corrected Amplitude & Margin Calculation ................................................................................................ 14 3.3 6 DB EMISSION BANDWIDTH: ...................................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View