2AOKB-A3919LCWireless Headphone

AnkerInnovationsLimited Room1318-19,HollywoodPlaza,610NathanRoad,Mongkok,Kowloon,Hongkong Long/Short-termConfidentialityRequest FederalCommunicationsCommissionDate:Aug.17,2021 44512 th StreetSW Washington,DC20554 FCCID:2AOKB-A3919LC 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

Anker Innovations Limited Room 1318-19, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hongkong Agent Authorization Company: Anker Innovations Limited Address: Room 1318-19, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hongkong Product Name: Wireless Headphone Model Number(s): A3919LC Product Description: Wireless Headphone 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: Aug. 17, 2021 Name: Louis Qi Title: General Manager Company: Anker Innovations Limited

External Photos WHOLE VIEW OF EUT TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT

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

Internal Photos OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 BT Antenna INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4

RFEXPOSUREEVALUATION 1.PRODUCTINFORMATION ProductDescription WirelessHeadphone ModelName A3919LC FCCID2AOKB-A3919LC 2.EVALUATIONMETHOD Accordingto447498D01GeneralRFExposureGuidancev06 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR. Wheref(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation 3.CALCULATION BR/EDR: P t =7.895dBm=6.16mW ThevalueoftheMaximumoutputpowerP t isreferredtothetestreportofthe CFR47 §15.247. TheresultforRFexposureevaluationSAR=(6.16mW/5mm).[√2.480GHz)]=1.93<3.0for 1-gSARand≤7.5for10-gextremitySAR. BLE: P t =6.759dBm=4.74mW ThevalueoftheMaximumoutputpowerP t isreferredtothetestreportofthe CFR47 §15.247. TheresultforRFexposureevaluationSAR=(4.74mW/5mm).[√2.480GHz)]=1.49<3.0for 1-gSARand≤7.5for10-gextremitySAR. 4.CONCLUSION TheSARevaluationisnotrequired.

Page 1 of 42 FCC Test Report Report No.: AGC01110210721FE02 FCC ID : 2AOKB-A3919LC APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Wireless Headphone BRAND NAME : Soundcore MODEL NAME : A3919LC APPLICANT : Anker Innovations Limited DATE OF ISSUE : Aug. 06, 2021 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC01110210721FE02 Page 2 of 42 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Aug. 06, 2021 Valid Initial Release Report No.: AGC01110210721FE02 Page 3 of 42 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RELATED SUBMITTAL(S)/GRANT(S) ....................................................................................................... 7 2.4. TEST METHODOLOGY ............................................................................................................................. 7 2.5. SPECIAL ACCESSORIES .......................................................................................................................... 7 2.6. EQUIPMENT MODIFICATIONS ................................................................................................................. 7 2.7. ANTENNA REQUIREMENT ....................................................................................................................... 7 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 8 4. DESCRIPTION OF TEST MODES ................................................................................................................... 9 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 10 5.1. CONFIGURATION OF TESTED SYSTEM ............................................................................................... 10 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 10 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 10 6. TEST FACILITY ............................................................................................................................................... 11 7. PEAK OUTPUT POWER ................................................................................................................................ 12 7.1. MEASUREMENT PROCEDURE .............................................................................................................. 12 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 12 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 13 8. BANDWIDTH .................................................................................................................................................. 15 8.1. MEASUREMENT PROCEDURE .............................................................................................................. 15 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 15 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 15 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 19 9.1. MEASUREMENT PROCEDURE .............................................................................................................. 19 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 19 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 19 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 19 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ........................................................ 26 Report No.: AGC01110210721FE02 Page 4 of 42 10.1. MEASUREMENT PROCEDURE ............................................................................................................ 26 10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 26 10.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 26 10.4. LIMITS AND MEASUREMENT RESULT................................................................................................ 26 11. RADIATED EMISSION ................................................................................................................................. 28 11.1. MEASUREMENT PROCEDURE ............................................................................................................ 28 11.2. TEST SETUP .......................................................................................................................................... 29 11.3. LIMITS AND MEASUREMENT RESULT.........................................................................................…

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Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz CONDUCTED TEST SETUP