2AFTU-DD024Bluetooth Headset

Declaration of difference We Shenzhen Soundsoul Information Technology Co.,Ltd , declared that all models are electrically identical ，Only except the models no and colors are different. Signature: Company: Shenzhen Soundsoul Information Technology Co.,Ltd Product Name: Bluetooth Headset Model No.：Air3，Air4, Air5, Air6, Air7, Air8, Air9 FCC ID：2AFTU-DD024 The device have left and right earphones , left and right earphones are electrically identical.

DATE2021/8/20 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointBlueAsiaTechnologyServices(Shenzhen),Limited.andBuilding C,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen,Guangdong Province,China(NameofAgentcompanynameandaddress)toactasouragentinthe preparationofthisapplicationforequipmentcertification.Icertifythatsubmitted documentsproperlydescribethedeviceorsystemforwhichequipmentcertificationis sought.Ialsocertifythateachunitmanufactured,importedormarketed,asdefinedinthe FederalCommunicationsCommission’sregulationswillhaveaffixedtoitalabelidentical tothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithShenzhenSoundsoulInformation TechnologyCo.,LtdandRoom1308-1309,BuildingB,HuihaiSquare, ChuangyeRoad,LonghuaDistrict,Shenzhen,Guangdong,China (ApplicantNameandaddress) <Signature> NameJasonYang Title Manager ApplicantCompanyShenzhenSoundsoulInformationTechnologyCo.,Ltd

DATE2021/8/20 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2AFTU-DD024 ProductName:BluetoothHeadset RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommissionsrules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> NameJasonYang TitleManager ApplicantCompanyShenzhenSoundsoulInformationTechnologyCo.,Ltd

Model No.: Air3

15mm Productname ： BluetoothHeadset 10 mmFCCID ： 2AFTU-DD024 Model:Air3

Model No.: Air3

RF Exposure Evaluation Statement Product Name: Bluetooth Headset Model No.：Air3，Air4, Air5, Air6, Air7, Air8, Air9 FCC ID：2AFTU-DD024 1.1 RF Exposure Compliance Requirement 1.1.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 Standalone SAR test exclusion considerations Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Exclusion Threshold condition, listed below, is satisfied. 1.1.2 Limits 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)] · [√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 17 The result is rounded to one decimal place for comparison 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 is applied to determine SAR test exclusion 1.1.3 EUT RF Exposure Operational Mode: EDR （8-DPSK worst case） Channel Maximum Peak Conducted Output Power (dBm) Tune up tolerance (dB) Maximum tune-up Power Calculated value Exclusion threshold (dBm) (mW) 2402MHZ 5.32 ±1 6.32 4.29 1.33 3.0 2441MHz 4.32 ±1 5.32 3.40 1.06 2480MHz 4.93 ±1 5.93 3.92 1.23 Conclusion: the calculated value ≤3.0, SAR is exempted.

Page 1 of97 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Add: Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TEST REPORT Product Name : Bluetooth Headset Brand Mark : N/A Model No. : Air3 Extension Model : Air4, Air5, Air6, Air7, Air8, Air9 FCC ID : 2AFTU-DD024 Report Number : BLA-EMC-202107-A9502 Date of Sample Receipt : 2021/7/23 Date of Test : 2021/7/23 to 2021/8/16 Date of Issue : 2021/8/17 Test Standard : 47 CFR Part 15, Subpart C 15.247 Test Result : Pass Prepared for: Shenzhen Soundsoul Information Technology Co.,Ltd Room 1308-1309, Building B, Huihai Square, Chuangye Road, Longhua District, Shenzhen, Guangdong, China Prepared by: BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China TEL: +86-755-23059481 Compiled by: Review by: Approved by: Date: 2021/8/17 Report No.: BLA-EMC-202107-A9502 Page 2 of97 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com REPORT REVISE RECORD Version No. Date Description 00 2021/8/17 Original Report No.: BLA-EMC-202107-A9502 Page 3 of97 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TABLE OF CONTENTS 1 TEST SUMMARY ........................................................................................................................................6 2 GENERAL INFORMATION .........................................................................................................................7 3 GENERAL DESCRIPTION OF E.U.T. .........................................................................................................7 4 TEST ENVIRONMENT ................................................................................................................................8 5 TEST MODE ................................................................................................................................................8 6 MEASUREMENT UNCERTAINTY ..............................................................................................................8 7 DESCRIPTION OF SUPPORT UNIT...........................................................................................................9 8 LABORATORY LOCATION .........................................................................................................................9 9 TEST INSTRUMENTS LIST ..................................................................................................................... 10 10 ANTENNA REQUIREMENT ..................................................................................................................... 14 10.1 CONCLUSION ....................................................................................................................................................... 14 11 CONDUCTED SPURIOUS EMISSIONS .................................................................................................. 15 11.1 LIMITS .............................................................................................................................................................. 15 11.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 15 11.3 TEST DATA .......................................................................................................................................................... 16 12 RADIATED EMISSIONS WHICH FALL IN THE RESTRICTED BANDS................................................. 17 12.1 LIMITS .............................................................................................................................................................. 17 12.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 18 12.3 PROCEDURE ..................................................................................................................................................... 18 12.4 TEST DATA .......................................................................................................................................................... 20 13 CONDUCTED BAND EDGES MEASUREMENT ..................................................................................... 24 13.1 LIMITS .............................................................................................................................................................. 24 13.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 24 13.3 TEST DATA .......................................................................................................................................................... 25 14 DWELL TIME ............................................................................................................................................ 26 14.1 LIMITS .............................................................................................................................................................. 26 14.2 BLOCK DIAGRAM OF TEST SETUP ..................................................................................................................... 26 14.3 TEST DATA .......................................................................................................................................................... 27 15 HOPPING CHANNEL NUMBER .............................................................................................................. 28 Report No.: BLA-EMC-202107-A9502 Page 4 of97 BlueAsia of Technical Services(Shenzhen) Co., Ltd. …

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Model No.: Air3