2BCM7-X55Bluetooth headset

Shenzhen Chaoyin Electronics Co., Ltd Address：515, Floor 5, East Building 405, Sangda Industrial Zone, Zhenxing Road, Licun Community, Huaqiangbei Street, Futian District, Shenzhen Date: 2023-08-31 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing SUBJECT: FCC Application for FCC ID: 2BCM7-X55 Shenzhen Chaoyin Electronics Co., Ltd certifies that, as of the date of the filing of the application, GSS SERVICE INC is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen Chaoyin Electronics 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. GSS SERVICE INC 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: Name: GSS SERVICE INC Address: 6547 N Academy Blvd #2266 Colorado Springs COLORADO 80918 United States FRN ：0033402082 Contact Person: Michoux Logan Tel.: 001-949-2990192 Email: [email protected] Sincerely, Signed on behalf of Shenzhen Chaoyin Electronics Co., Ltd Signed on behalf of GSS SERVICE INC Name: AMY Ma Name: Michoux Logan Title: Manager Title: Manager Date: 2023-08-31 Date: 2023-08-31

Shenzhen Chaoyin Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Aug 31, 2023 FCC ID: 2BCM7-X55 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Shenzhen Chaoyin Electronics Co., Ltd 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Shenzhen Chaoyin Electronics Co., Ltd 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. Applicant: Shenzhen Chaoyin Electronics Co., Ltd Address: 515, Floor 5, East Building 405, Sangda Industrial Zone, Zhenxing Road, Licun Community, Huaqiangbei Street, Futian District, Shenzhen Contact Person: AMY Ma Tel.: +86-13724280687 Email: [email protected] Sincerely, Signature:

UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 产品规格承认书 SPECIFICATIONS 客户: CUSTOMER: 产品名称: DESCRIPTION:蓝牙天线 客户型号: CUSTOMERPARTNo: 产品型号: OURMODELNO:PBX3216MP01 日期: DATE:2020/12/22 确认签字,盖章后请返回承认书一份 PLEASERETURNTOUSONECOPYOF“SPECIFICATIONFORAPPROVAL” WITHYOURAPPROVEDSIGNATURES 审核刘飞制作刘小美 Bluetooth ANT Prepared by Reviewed by Room 1016, Mintai Building, Minzhi Avenue, Minzhi Street, Longhua New District, Shenzhen Shenzhen pengban Xingye Technology Co., Ltd Shenzhen pengban Xingye Technology Co., Ltd Manufacturer UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 PBX3216MP01Specification OperatingTemp.:-40°C~+85°C 1. FEATURES : ●Lightweight,compact ●Widebandwidth,lowcost ●Built-inantennawithhighgain 2. APPLICATIONS : ●Bluetooth,WirelessLAN,MobileTV ●HomeRFSystem,etc 3.PRODUCTIDENTIFICATION (1)(2)(3) (1)Producttype:MultilayerchipAntenna (2)CenterFrequency:2450MHz (3)ExternalDimensions(L×W)(mm):3.2*1.6 4.SHAPEANDDIMENSIONS: LWHA 3.2±0.21.6±0.2 0.52 ± 0.10.4 ± 0.1 CH IP45 032 2 16 Shenzhen pengban Xingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 ： Shenzhen pengban Xingye Technology Co., Ltd Size(mm) Top PAD ANT Bottom UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 APPLICATIONGUIDE 5.SPECIFICATIONS: *Testcondition:Testboardsize90*40mm Matchingcircuit:Pimatchingcircuitwillberequired Shenzhen pengban Xingye Technology Co., Ltd Top PAD ANT Bottom Punching reference diagram Punching UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 6.ElectricalCharacteristics: MarkFrequencyVSWR 12400MHz1.513 22440MHz1.068 32480MHz1.464 Shenzhen pengban Xingye Technology Co., Ltd VSWR Loss UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 RadiationPattern TheGainpatternismeasuredinFAR-fieldchamber.DUTisplacedonthetableofrotator,a standardhornantennaandVectorNetworkAnalyzerisusedtocollectdata. Shenzhen pengban Xingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 ◎3DGainPattern(2400MHz) ◎3DGainPattern(2440MHz) ◎3DGainPattern(2480MHz) Shenzhen pengban Xingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 7.EnvironmentalCharacteristics (1)ReliabilityTest (2)StorageCondition (a)Atwarehouse: Thetemperatureshouldbewithin0~30°Candhumidityshouldbelessthan60%RH. Theproductshouldbeusedwithin1yearfromthetimeofdelivery. (b)Onboard: Thetemperatureshouldbewithin-40~85°Candhumidityshouldbelessthan85%RH. (3)OperatingTemperatureRange Operatingtemperaturerange:-40 °C to+105 °C . Shenzhen pengban Xingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-3216Specification DOCUMENT NO. 3216 SPECREV. P1 8.RecommendedReflowSoldering (1)SolderingGunProcedure Notethefollows,incaseofusingsoldergunforreplacement. (a)Thetiptemperaturemustbelessthan350 ° Cfortheperiodwithin3secondsby usingsolderinggununder30W. (b)Thesolderingguntipshallnottouchthisproductdirectly. (2)SolderingVolume Notethatexcessofsolderingvolumewilleasilygetcrackthebodyofthisproduct. Shenzhen pengban Xingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCES…

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Shenzhen Chaoyin Electronics Co., Ltd Date：Aug 31, 2023 Product Model Number: X55, X79, X77, X88, X99, X15, X15PRO, X87, X57, X58, X25, X22, X33, X56, X88PRO, X29, X55PRO, X60, X35 FCC ID：2BCM7-X55 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: Testing Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: +86-13724280687 On behalf of: Shenzhen Chaoyin Electronics Co., Ltd

Shenzhen Chaoyin Electronics Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 31, 2023 Subject; Request for Confidentiality FCC ID: 2BCM7-X55 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: AMY Ma Title: Manager

Shenzhen Chaoyin Electronics Co., Ltd X55_Model Difference Product description: Bluetooth headset Model name: X55, X79, X77, X88, X99, X15, X15PRO, X87, X57, X58, X25, X22, X33, X56, X88PRO, X29, X55PRO, X60, X35 FCC ID: 2BCM7-X55 All the model are of the same circuit and RF module, and the only difference are model names. The model X55 is the tested sample. Regards Sincerely Client’s signature: Client’s name / title: AMY Ma / Manager Contact information / address: Shenzhen Chaoyin Electronics Co., Ltd 515, Floor 5, East Building 405, Sangda Industrial Zone, Zhenxing Road, Licun Community, Huaqiangbei Street, Futian District, Shenzhen

FCC ID: 2BCM7- X55 EUT PHOTOS(External Photos) FCC ID: 2BCM7- X55 FCC ID: 2BCM7- X55 FCC ID: 2BCM7- X55 ※※※※※ END OF REPORT ※※※※※

Size：14mm*2.5mm FCC ID: 2BCM7- X55

FCC ID: 2BCM7- X55 EUT PHOTO (Internal Photos) FCC ID: 2BCM7- X55 FCC ID: 2BCM7- X55 FCC ID: 2BCM7- X55 FCC ID: 2BCM7- X55 FCC ID: 2BCM7- X55 ※※※※※ END OF REPORT ※※※※※ ANT

FCC ID: 2BCM7- X55 RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093，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 Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Here, For Bluetooth Mode Max Power (dBm) Tune-up power (dBm) Max Power (mW) Frequency(MHz) Min. Distance (mm) Calc. thresholds limit BR/EDR -0.71 0±1 1.55 2441 5 0.3902 3.0 So a SAR test is not required， ANT Gain：2.67dBi

Project No.: ZHT-230804011E Page 1 of 57 FCC TEST REPORT FCC ID: 2BCM7- X55 Report Number. .............................. : ZHT-230804011E Date of Test ................................................. : Aug.04, 2023 to Aug. 21, 2023 Date of issue .................................... : Aug. 21, 2023 Test Result ..................................... : PASS Testing Laboratory. ........................ : Guangdong Zhonghan Testing Technology Co., Ltd. Address .......................................... : Room 104, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Applicant's name ......................... : Shenzhen Chaoyin Electronics Co., Ltd Address .......................................... : 515, Floor 5, East Building 405, Sangda Industrial Zone, Zhenxing Road, Licun Community, Huaqiangbei Street, Futian District, Shenzhen Manufacturer's name ................... : Shenzhen Chaoyin Electronics Co., Ltd Address .......................................... : 515, Floor 5, East Building 405, Sangda Industrial Zone, Zhenxing Road, Licun Community, Huaqiangbei Street, Futian District, Shenzhen Test specification: Standard ........................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Test procedure ................................. : KDB558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 Non-standard test method ............. : N/A This device described above has been tested by ZHT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of ZHT, this document may be altered or revised by ZHT, personal only, and shall be noted in the revision of the document. Product name ................................. : Bluetooth headset Trademark ...................................... : / Model/Type reference ...................... : X55 X79, X77, X88, X99, X15, X15PRO, X87, X57, X58, X25, X22, X33, X56, X88PRO, X29, X55PRO, X60, X35 Ratings ............................................. : 5 V30 mA by charging box or DC 3.7 V by battery Project No.: ZHT-230804011E Page 2 of 57 Testing procedure and testing location: Testing Laboratory ..................................... : Guangdong Zhonghan Testing Technology Co., Ltd. Address ...................................................... : Room 104, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Leon Li Tested by (name + signature) .................... : Baret Wu Reviewer (name + signature) ..................... : Levi Lee Approved (name + signature) .................... : Project No.: ZHT-230804011E Page 3 of 57 Table of Contents Page 1. VERSION ................................................................................................................................................ 5 2. TEST SUMMARY ................................................................................................................................... 6 2.1 TEST FACILITY .................................................................................................................................... 7 2.2 MEASUREMENT UNCERTAINTY ....................................................................................................... 7 3. GENERAL INFORMATION .................................................................................................................... 8 3.1 GENERAL DESCRIPTION OF EUT ..................................................................................................... 8 3.2 Test Setup Configuration .................................................................................................................... 10 3.3 Support Equipment ............................................................................................................................. 10 3.4 Test Mode ........................................................................................................................................... 10 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS ..................................................................................... 11 4. EMC EMISSION TEST ......................................................................................................................... 13 4.1 Conducted emissions ......................................................................................................................... 13 4.1.1 POWER LINE CONDUCTED EMISSION Limits ............................................................................. 13 4.1.2 TEST PROCEDURE ........................................................................................................................ 13 4.1.3 DEVIATION FROM TEST STANDARD ........................................................................................... 13 4.1.4 TEST SETUP ................................................................................................................................... 14 4.1.5 EUT OPERATING CONDITIONS .................................................................................................... 14 4.1.6 Test Result ....................................................................................................................................... 15 4.2 Radiated emissions............................................................................................................................. 17 4.2.1 Radiated Emission Limits ................................................................................................................ 17 4.2.2 TEST PROCEDURE ........................................................................................................................ 17 4.2.3 DEVIATION FROM TEST STANDARD ...............................................…

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FCC ID: 2BCM7- X55 EUT TEST PHOTOS (The structure of the left and right earphones is the same, and the testing is based on the left earphone.) FCC ID: 2BCM7- X55 ※※※※※ END OF REPORT ※※※※※