2AOKB-A3954RWireless Headphone

Anker Innovations Limited Section 2.911(d)(7) USA Agent for Service of Process Company name: Anker Innovations Limited Address: Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong FRN: 0027073105 FCC ID: 2AOKB-A3954R 2.911(d)(7) USA Designated Agent for Service of Process We, [Anker Innovations Limited] (“the applicant”) designate [Fantasia Trading LLC] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent:We Acknowledge our 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 acknowledge our acceptance 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 any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation:We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address 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. USA Agent Company name: Fantasia Trading LLC Address: 5350 Ontario Mills Pkwy, STE 100, Ontario, CA 91764, United States FRN: 0033423005 Contact Name: Louis Qi Telephone No: +1 (800)988 7973 Email: [email protected] Applicant Company name: Anker Innovations Limited Address: Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong Grantee Code: 2AOKB Contact Name: Louis.qi Telephone No: +86-755-86544807 Email:[email protected] Signature: Signature: Title:Compliance Manager Date:Jul. 01, 2024 Title: Compliance Manager Date: Jul. 01, 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-national-security-threats-to-th e-communications-supply-chain-through-the

AnkerInnovationsLimited Unit 56, 8th Floor,Tower2, AdmiraltyCentre,18 HarcourtRoad,HongKong FederalCommunicationsCommission Authorizationand EvaluationDivision 7435OaklandMillsRoad Columbia,MD 21046 USA Date:Jul. 01, 2024 Ref:AttestationStatementsPart 2.911(d)(5)(i)Filing FCC ID: 2AOKB-A3954R FRN:0027073105 [AnkerInnovationsLimited] (“the applicant”) certifiesthat the equipmentfor whichauthorizationis soughtis not “covered” equipmentprohibitedfromreceivingan equipmentauthorizationpursuantto section2.903of the FCC rules. Sincerely, (Applicantsignature) (LouisQi)

AnkerInnovationsLimited Unit56,8thFloor,Tower2,AdmiraltyCentre,18HarcourtRoad,HongKong FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:Jul.01,2024 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2AOKB-A3954R FRN:0027073105 [AnkerInnovationsLimited](“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication, theapplicantisnotidentifiedontheCoveredListasanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (LouisQi)

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Anker Innovations Limited Address: Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong Product Name: Wireless Headphone Model Number: A3954R FCC Identifier: 2AOKB-A3954R We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Louis Qi Date: Jul. 01, 2024 Title: General Manager Signature of applicant:

AnkerInnovationsLimited Unit56,8thFloor,Tower2,AdmiraltyCentre,18HarcourtRoad,HongKong Long/Short-termConfidentialityRequest FederalCommunicationsCommissionDate:Jul.01,2024 44512 th StreetSW Washington,DC20554 FCCID:2AOKB-A3954R ToWhomitmayconcerns, Pursuanttosections0.457(d)and0.459ofCFR47andtoavoidprematurereleaseof sensitiveinformationpriortomarketingorreleaseoftheproducttothepublic,wehereby requestslong-termconfidentialtreatmentofinformationaccompanyingthisapplicationas outlinedbelow: SchematicsPartsList BlockDiagramTune-UpInfo OperationalDescription Inadditionweherebyrequestthefollowingexhibitscontainedinthisapplicationtobe temporarily(short-termconfidentilality)withheldfromthepublicdisclosure foraninitialperiodof180daysuntil:notapplicable ExternalPhotosTestSetupPhotos InternalPhotosUsersManual Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesemattersmightbeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. Theapplicantunderstandsthatpursuanttorule0.457(d),disclosureofthisapplicationand allaccompanyingdocumentationwillnotbemadebeforethedateoftheGRANTforthis application. Ifyouhaveanyquestions,pleasefeelfreetocontactme. Yourssincerely, Signatory Contactperson:LouisQi Title:GeneralManager

FCC ID Label Location The product does not have enough space to place the label, and FCC ID is reflected in the user manual. User manual as below:

Page 1 of 38 SAR Test Report Report No.: AGC01110240541FH01 FCC ID : 2AOKB-A3954R APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Wireless Headphone BRAND NAME : soundcore MODEL NAME : A3954R APPLICANT : Anker Innovations Limited DATE OF ISSUE : Jul. 04, 2024 STANDARD(S) : IEEE Std. 1528:2013 FCC 47 CFR Part 2§2.1093 IEEE Std C95.1 ™-2005 REPORT VERSION : V1.0 Attestation of Global Compliance(Shenzhen) Co., Ltd. Report No.: AGC01110240541FH01 Page 2 of 38 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jul. 04, 2024 Valid Initial Release Report No.: AGC01110240541FH01 Page 3 of 38 Test Report Applicant Name Anker Innovations Limited Applicant Address Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong Manufacturer Name Anker Innovations Limited Manufacturer Address Unit 56, 8th Floor, Tower 2, Admiralty Centre, 18 Harcourt Road, Hong Kong Factory Name N/A Factory Address N/A Product Designation Wireless Headphone Brand Name soundcore Model Name A3954R Series Model(s) N/A Difference Description N/A EUT Voltage DC 3.85V by battery Applicable Standard IEEE Std. 1528:2013 FCC 47 CFR Part 2§2.1093 IEEE Std C95.1 ™-2005 Date of receipt of test item Jun. 07, 2024 Test Date Jun. 29, 2024 Report Template AGCRT-US-Bluetooth/SAR (2021-04-20) Note: The results of testing in this report apply to the product/system which was tested only. Prepared By Thea Huang (Project Engineer) Jul. 04, 2024 Reviewed By Calvin Liu (Reviewer) Jul. 04, 2024 Approved By Max Zhang (Authorized Officer) Jul. 04, 2024 Report No.: AGC01110240541FH01 Page 4 of 38 TABLE OF CONTENTS 1. SUMMARY OF MAXIMUM SAR VALUE ......................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................... 6 2.1. EUT DESCRIPTION......................................................................................................................................... 6 3. SAR MEASUREMENT SYSTEM ........................................................................................................................ 7 3.1. THE DASY5 SYSTEM USED FOR PERFORMING COMPLIANCE TESTS CONSISTS OF FOLLOWING ITEMS .................... 7 3.2. DASY5 E-FIELD PROBE ................................................................................................................................. 8 3.3. DATA ACQUISITION ELECTRONICS DESCRIPTION ............................................................................................... 8 3.4. ROBOT .......................................................................................................................................................... 9 3.5. LIGHT BEAM UNIT .......................................................................................................................................... 9 3.6. DEVICE HOLDER .......................................................................................................................................... 10 3.7. MEASUREMENT SERVER ............................................................................................................................... 10 3.8. PHANTOM ................................................................................................................................................. 11 4. SAR MEASUREMENT PROCEDURE .............................................................................................................. 12 4.1. SPECIFIC ABSORPTION RATE (SAR) .............................................................................................................. 12 4.2. SAR MEASUREMENT PROCEDURE ................................................................................................................ 13 4.3. RF EXPOSURE CONDITIONS ......................................................................................................................... 15 5. TISSUE SIMULATING LIQUID ......................................................................................................................... 16 5.1. THE COMPOSITION OF THE TISSUE SIMULATING LIQUID..................................................................................... 16 5.2. TISSUE DIELECTRIC PARAMETERS FOR HEAD AND BODY PHANTOMS ............................................................... 16 5.3. TISSUE CALIBRATION RESULT ....................................................................................................................... 17 6. SAR SYSTEM CHECK PROCEDURE ........................................................................................................... 18 6.1. SAR SYSTEM CHECK PROCEDURES ............................................................................................................. 18 6.2. SAR SYSTEM CHECK ................................................................................................................................... 19 7. EUT TEST POSITION ...................................................................................................................................... 21 7.1. TEST POSITION ............................................................................................................................................ 21 8. SAR EXPOSURE LIMITS ............................................................................................................................... 22 9. TEST FACILITY .............................................................................................................................................. 23 10. TEST EQUIPMENT LIST .............................................................................................................................. 24 11. MEASUREMENT UNCERTAINTY ...................................................................................................…

Text truncated - open the document above for the full version.

CALIBRATION DATA PROBE CALIBRATION DATA DAE CALIBRATION DATA DIPOLE CALIBRATION DATA

3 I：The report of passive data Angilent E5071C Right antenna VSWR(S11) parameter 4 Passive efficiency and gain of left ear antenna R Frequency （MHz） Gain (dBi) Efficiency (dB ) Efficiency（%） 2400 -3.02 -7.24 18.88 2410 -2.92 -7.28 18.73 2420 -2.94 -7.30 18.64 2430 -2.96 -7.39 18.24 2440 -3.09 -7.58 17.45 2450 -2.99 -7.57 17.48 2460 -3.01 -7.69 17.02 2470 -2.76 -7.39 18.25 2480 -2.57 -7.07 19.62 2490 -2.70 -7.17 19.19 2500 -2.78 -7.16 19.23 Average value -2.89 -7.35 18.43 Antenna radiation 3D pattern (Unit：dBi) 5 Antenna radiation 2D pattern(Unit：dBi) Theta=90.00deg Phi=0.00deg Phi=90.00deg 6 II：3D Active test report of antenna Free Channel TRP（dBm） TIS（dBm） BT CH 0 7.3 -93.9 CH 39 6.6 -92.8 CH 78 6.0 -90.8 Headform Channel TRP（dBm） TIS（dBm） BT CH 0 1.1 -87.7 CH 39 1.4 -87.5 CH 78 1.7 -86.7 OTA Standard Chamber 7 III：Matching circuit Element Value C24 3.6nH L5 3.9nH C33 ESD 8 IV：Structure file

Impedance Plot for D2450V2-SN: 968 2450 Head Calibrated impedance:51.9Ω+3.63jΩ;Measurement impedance: 50.4Ω-3.7jΩ(within 5Ω) Calibrated return loss:- 27.9dB;Measurement return loss: -24.44dB (within 20%)

Page 1 of 77 FCC Test Report Report No.: AGC01110240541FR01 FCC ID : 2AOKB-A3954R APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Wireless Headphone BRAND NAME : soundcore MODEL NAME : A3954R APPLICANT : Anker Innovations Limited DATE OF ISSUE : Jul. 01, 2024 STANDARD(S) : FCC Part 15 Subpart C §15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC01110240541FR01 Page 2 of 77 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jul. 01, 2024 Valid Initial Release Report No.: AGC01110240541FR01 Page 3 of 77 Table of Contents 1. General Information ........................................................................................................................................ 5 2. Product Information ........................................................................................................................................ 6 2.1 Product Technical Description ................................................................................................................... 6 2.2 Test Frequency List ................................................................................................................................... 6 2.3 Related Submittal(S) / Grant (S) ............................................................................................................... 7 2.4 Test Methodology ...................................................................................................................................... 7 2.5 Receiver Input Bandwidth ......................................................................................................................... 7 2.6 Equally Average Use of Frequencies and Behaviour................................................................................ 7 2.7 Pseudorandom Frequency Hopping Sequence ........................................................................................ 8 2.8 Special Accessories .................................................................................................................................. 9 2.9 Equipment Modifications ........................................................................................................................... 9 2.10 Antenna Requirement ............................................................................................................................. 9 3. Test Environment .......................................................................................................................................... 10 3.1 Address of The Test Laboratory .............................................................................................................. 10 3.2 Test Facility .............................................................................................................................................. 10 3.3 Environmental Conditions ....................................................................................................................... 11 3.4 Measurement Uncertainty ....................................................................................................................... 11 3.5 List of Equipment Used ........................................................................................................................... 12 4.System Test Configuration ............................................................................................................................ 14 4.1 EUT Configuration ................................................................................................................................... 14 4.2 EUT Exercise ........................................................................................................................................... 14 4.3 Configuration of Tested System .............................................................................................................. 14 4.4 Equipment Used in Tested System ......................................................................................................... 14 4.5 Summary of Test Results ........................................................................................................................ 15 5. Description of Test Modes ........................................................................................................................... 16 6. RF Output Power Measurement .................................................................................................................. 17 6.1 Provisions Applicable .............................................................................................................................. 17 6.2 Measurement Procedure ......................................................................................................................... 17 6.3 Measurement Setup (Block Diagram of Configuration) .......................................................................... 17 6.4 Measurement Result ............................................................................................................................... 18 7. 20dB Bandwidth and 99% Occupied Bandwidth Measurement ............................................................... 24 7.1 Provisions Applicable .............................................................................................................................. 24 7.2 Measurement Procedure ......................................................................................................................... 24 7.3 Measurement Setup (Block Diagram of Configuration) .......................................................................... 24 7.4 Measurement Results ............................................................................................................................. 25 8. Conducted Band Edge and Out-of-Band Emissions ...............................…

Text truncated - open the document above for the full version.

Report No.: AGC01110240541FR01 Page 71 of 77 Test_Graph_EDR_HOP_ANT1_NA_2Mbps_2441_Number of Busrt Test_Graph_EDR_HOP_ANT1_NA_2Mbps_2441_Time per Burst Report No.: AGC01110240541FR01 Page 72 of 77 Test_Graph_EDR_HOP_ANT1_NA_2Mbps_2480_Number of Busrt Test_Graph_EDR_HOP_ANT1_NA_2Mbps_2480_Time per Burst Note: All mode rates are tested and evaluated, π /4-DQPSK modulated 2DH5 mode is the worst case and documented in the report. Report No.: AGC01110240541FR01 Page 73 of 77 12. Frequency Separation Measurement 12.1 Provisions Applicable When the power is less than 0.125W: The minimum permissible channel separation for this system is 2/3 the value of the 20dB BW. When the power is less than 1W: The minimum permissible channel separation for this system is 20dB BW. 12.2 Measurement Procedure The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: Wide enough to capture the peaks of two adjacent channels. 2. RBW: Start with the RBW set to approximately 30% of the channel spacing; adjust as necessary to best identify the center of each individual channel. 3. Video (or average) bandwidth (VBW) ≥ RBW. 4. Sweep: Auto. 5. Detector function: Peak. 6. Trace: Max hold. g) Allow the trace to stabilize. 7. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. 12.3 Measurement Setup (Block Diagram of Configuration) 12.4 Measurement Result Test Data of Frequency Separation Test Mode Channel Separation (MHz) Limits (MHz) Pass or Fail π /4-DQPSK Hopping 0.985 ≥0.847 Pass Report No.: AGC01110240541FR01 Page 74 of 77 Test Graphs of Number of Hopping Frequency Test_Graph_EDR_HOP_ANT1_NA_2Mbps_Hopping Separation Note: All mode rates are tested and evaluated, π /4-DQPSK modulated 2DH5 mode is the worst case and documented in the report. Report No.: AGC01110240541FR01 Page 75 of 77 13. AC Power Line Conducted Emission Test 13.1 Measurement Limit Frequency Maximum RF Line Voltage Q.P. (dBμV) Average (dBμV) 150kHz~500kHz 66-56 56-46 500kHz~5MHz 56 46 5MHz~30MHz 60 50 Note: 1. The lower limit shall apply at the transition frequency. 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz. 13.2 Measurement Setup (Block Diagram of Configuration) Report No.: AGC01110240541FR01 Page 76 of 77 13.3 Preliminary Procedure of Line Conducted Emission Test 1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s manual. When the EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10 (see Test Facility for the dimensions of the ground plane used). When the EUT is a floor-standing equipment, it is placed on the ground plane which has a 3-12 mm non-conductive covering to insulate the EUT from the ground plane. 2. Support equipment, if needed, was placed as per ANSI C63.10. 3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10. 4. All support equipment received AC120V/60Hz power from a LISN, if any. 5. The EUT received DC 5V power from adapter which received AC120V/60Hz power from a LISN. 6. The test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver. 7. Analyzer / Receiver scanned from 150 kHz to 30MHz for emissions in each of the test modes. 8. During the above scans, the emissions were maximized by cable manipulation. 9. The test mode(s) were scanned during the preliminary test. Then, the EUT configuration and cable configuration of the above highest emission level were recorded for reference of final testing. 13.4 Final Procedure of Line Conducted Emission Test 1. EUT and support equipment was set up on the test bench as per step 2 of the preliminary test. 2. A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest emissions. Emission frequency and amplitude were recorded into a computer in which correction factors were used to calculate the emission level and compare reading to the applicable limit. If EUT emission level was less – 2dB to the A.V. limit in Peak mode, then the emission signal was re-checked using Q.P and Average detector. 3. The test data of the worst case condition(s) was reported on the Summary Data page. 13.5 Measurement Results N/A Note: The BT function cannot transmit when charging Report No.: AGC01110240541FR01 Page 77 of 77 Appendix I: Photographs of Test Setup Refer to the Report No.: AGC01110240541AP01 Appendix II: Photographs of Test EUT Refer to the Report No.: AGC01110240541AP02 -----End of Report----- Conditions of Issuance of Test Reports 1. All samples and goods are accepted by the Attestation of Global Compliance (Shenzhen) Co., Ltd (the “Company”) solely for testing and reporting in accordance with the following terms and conditions. The company provides its services on the basis that such terms and conditions constitute express agreement between the company and any person, firm or company requesting its services (the “Clients”). 2. Any report issued by Company as a result of this application for testing services (the “Report”) shall be issued in confidence to the Clients and the Report will be strictly treated as such by the Company. It may not be reproduced either in its entirety or in part and it may not be used for advertising or other unauthorized purposes without the written consent of the Company. The Clients to whom the Report is issued may, however, show or send it, or a certified copy thereof prepared by the Company to its customer, supplier or other persons di…

Text truncated - open the document above for the full version.