2AHN6-AUBE240TWS Earphone

Bytech NY Inc. Covered Equipment Certification Attestation Letter 7/12/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AHN6-AUBE240 Bytech NY Inc. (“the applicant”) 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Bytech NY Inc. (“the applicant”) 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. Signed: Printed name: Soli Mizrahi Title: Click here to enter text. Company Name: Bytech NY Inc. Date: 7/12/2023

Bytech NY Inc. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 7/12/2023 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2AHN6-AUBE240 FRN of applicant: 0025388125 Per section 2.911(d)(7) of the FCC rules, [Bytech NY Inc. ] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Bytech NY Inc. FCC Registration Number (FRN): 0025388125 Physical U.S. Company Address: 2585 West 13th Street Brooklyn NY 11223 USA Contact Person: Soli Mizrahi Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Signed: Printed name: Soli Mizrahi Title: Company Name: Bytech NY Inc. Date: 7/12/2023 Agent Signed (if different from Applicant): Signed: Printed name: Click here to enter text. Title: Click here to enter text. Company Name: Click here to enter text. Date: Click here to enter a date.

July 26, 2023 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen Timeway Testing Laboratories/ Zone C, 1st Floor, Zone C, 1st Floor, Block B, Jun Xiang Da Building, Zhongshan Park Road West, Tong Le Village, Nanshan District, Shenzhen, China (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with B y t e c h N Y I n c ./ 2585 West 13th Street,Brooklyn NY 11223, United States <Signature>： Name：Soli Mizrahi Title： Applicant Company：Bytech NY Inc.

July 26, 2023 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AHN6-AUBE240 Product Name: TWS Earphone Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature>： Name：Soli Mizrahi Title： Applicant Company：Bytech NY Inc.

Bytech NY Inc. Statement We Bytech NY Inc. Hereby Declare that The product TWS Earphone, models no. G102, HM-AU-BE-240, XT-89 are all identical in interior structure, electrical circuits and components, and just the model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: <Signature>： Name：Soli Mizrahi Title：

Declaration Bluetooth earphone Model Number: G102, HM-AU-BE-240, XT-89 FCC ID: 2AHN6-AUBE240 The device have left and right earphones ，the left and right earphones are electrically identical. <Signature>： Name：Soli Mizrahi Title： Applicant Company：Bytech NY Inc.

Outside View - charger base Outside View - Left earphone Outside View - Right earphone

Inside View - Left earphone Inside View - Right earphone

RF Exposure evaluation According to 447498 D04 Interim General RF Exposure Guidance v01 eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter outpu t power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m Sopt = (EXd) 2 /30 x gt Ant gain =2.18dBi so Ant numeric gain= 1.652 Ant gain =0.03dBd so Ant numeric gain= 1.007 Field strength =70.64dBμV/m @3m@2402MHz So Pt={ [10 (70.64/20) /10 6 x3] 2 /（30x1.652） }x1000 mW = 0.002mW ERP=0.002x1.007=0.002014mW <2.72 mW Then SAR evaluation is not required

Report No.: TW2306320E Applicant: Bytech NY Inc. Product: TWS Earphone Model No.: G102, HM-AU-BE-240, XT-89 Trademark: Bytech, iHome Test Standards: FCC Part 15.249 Test result: It is herewith confirmed and found to comply with the requirements set up by ANSI C63.10 & FCC Part 15 Subpart C, Paragraph 15.249 regulations for the evaluation of electromagnetic compatibility Approved By Terry Tang Manager Dated: July 10, 2023 Results appearing herein relate only to the sample tested The technical reports is issued errors and omissions exempt and is subject to withdrawal at SHENZHEN TIMEWAY TESTING LABORATORIES Zone C, 1st Floor, Block B, Jun Xiang Da Building, Zhongshan Park Road West, Tong Le Village, Nanshan District, Shenzhen, China Tel (755) 83448688, Fax (755) 83442996, E-Mail:[email protected] Report No.: TW2306320E Page 2 of 47 Date: 2023-07-10 The report refers only to the sample tested and does not apply to the bulk. This report is issued in confidence to the client and it will be strictly treated as such by the SHENZHEN TIMEWAY TESTING LABORATORIES. It may not be reproduced rather in its entirety or in part and it may not be used for adverting. The client to whom the report is issued may, however, show or send it . or a certified copy there of prepared by the SHENZHEN TIMEWAY TESTING LABORATORIES. to his customer. Supplier or others persons directly concerned. SHENZHEN TIMEWAY TESTING LABORATORIES. will not, without the consent of the client enter into any discussion of correspondence with any third party concerning the contents of the report. In the event of the improper use of the report. The SHENZHEN TIMEWAY TESTING LABORATORIES. reserves the rights to withdraw it and to adopt any other remedies which may be appropriate. Special Statement： The testing quality ability of our laboratory meet with "Quality Law of People's Republic of China" Clause 19. The testing quality system of our laboratory meet with ISO/IEC-17025 requirements, which is approved by CNAS. This approval result is accepted by MRA of APLAC. Our test facility is recognized, certified, or accredited by the following organizations: CNAS-LAB Code: L2292 The EMC Laboratory has been assessed and in compliance with CNAS-CL01 accreditation criteria for testing Laboratories (identical to ISO/IEC 17025:2017 General Requirements) for the Competence of testing Laboratories. FCC-Registration No.: 744189 The EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications commission. The acceptance letter from the FCC is maintained in our files. Registration No.: 744189. Industry Canada (IC) —Registration No.:5205A The EMC Laboratory has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 5205A. A2LA (Certification Number:5013.01) The EMC Laboratory has been accredited by the American Association for Laboratory Accreditation (A2LA). Certification Number:5013.01 Report No.: TW2306320E Page 3 of 47 Date: 2023-07-10 The report refers only to the sample tested and does not apply to the bulk. This report is issued in confidence to the client and it will be strictly treated as such by the SHENZHEN TIMEWAY TESTING LABORATORIES. It may not be reproduced rather in its entirety or in part and it may not be used for adverting. The client to whom the report is issued may, however, show or send it . or a certified copy there of prepared by the SHENZHEN TIMEWAY TESTING LABORATORIES. to his customer. Supplier or others persons directly concerned. SHENZHEN TIMEWAY TESTING LABORATORIES. will not, without the consent of the client enter into any discussion of correspondence with any third party concerning the contents of the report. In the event of the improper use of the report. The SHENZHEN TIMEWAY TESTING LABORATORIES. reserves the rights to withdraw it and to adopt any other remedies which may be appropriate. Test Report Conclusion Content 1.0 General Details................................................................................................ 4 1.1 Test Lab Details................................................................................................ 4 1.2 Applicant Details.............................................................................................. 4 1.3 Description of EUT .......................................................................................... 4 1.4 Submitted Sample............................................................................................. 4 1.5 Test Duration................................................................................................... 5 1.6 Test Uncertainty................................................................................................ 5 1.7 Test By......................................................................................................... 5 2.0 List of Measurement Equipment......................................................................... 6 3.0 Technical Details............................................................................................. 7 3.1 Summary of Test Results.................................................................................... 7 3.2 Test Standards................................................................................................. 7 4.0 EUT Modification........................................................................................... 7 5.0 Power Line Conducted Emission Test.................................................................. 8 5.1 Schematics of the Test....................................................................................... 8 5.2 Test Method and Test Procedure............................................................................ 8 5.3 Configuration of the EUT.................................................................................... 8 5.4 EUT Operating Condition...........................…

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SMDCERAMICANTENNA DataSheet TSUN TECHNOLOGY CO., LTD . Rev.1.0 TS2012E245K04 For2400-2484MHz 2.0x1.2mm[EIA2012] SHAPES AND DIMENSIONSDimensions inmm FEATURES ・Lightweight,compact ・ Widebandwidth,lowcost ・ Built-inantennawithhighgain •OperatingTemp.:-40°C~+85°C APPLICATIONS ・ Bluetooth,Wireless L AN,MobileTV ・ HomeRFsystem,etc L WA H 2.0 ± 0.3 1.2 ± 0.3 0.3 ± 0.10.55 ± 0.1 Rev.1.0|2 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA TS2012E245K04 ELECTRICSPECIFICATIONS PARTNUMBERINGSYSTEM TS -2012 -E - Brand Dimension Material 2450 -K -04 FrequencyFeeding modeType Rev.1.0|3 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA Parameter Specification Units FrequencyBand 2400~2483 MHz P o l a riz at i o n Linear P eakGa in 2.18 dB i P ea kEffi c i e n c y 68.8%% Im p endance 50  ✷T est co n d i t i o n :Testboa r ds iz e98*65m m; Matchingcircuit:Pimatchingcircuitwillberequired。 T yp icalCharacteristics Fig.1VSW R Rev.1.0|4 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA RadiationPattern Th eGa inp atte rni smeasu r edi n FAR - fi e l dc h a m be r .DU T isplacedon t h etab l e o fr otato r ,asta n da r dho r na n te nn aa n dVecto rN et w o rk Analyzerisusedtocollect data. Fig.2FAR-fieldChamber 3DGainPattern(2400MHz) 2DGainPattern(2400MHz) Rev.1.0|5 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA 3DGainPattern(2450 MHz) 2DGainPattern(2450MHz) 3DGainPattern(2500MHz) 2DGainPattern(2500MHz) Rev.1.0|6 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA Item Condition Specification Thermalshock 1.30±3minutesat-40°C±5°C, 2.Convertto+105°C(5minutes) 3.30±3minutesat+105°C±5°C, 4.Convertto-40°C(5minutes) 5.Total100continuouscycles Noapparentdamage Fulfilltheelectrical spec.aftertest. Humidityresistance 1.Humidity:85%R.H. 2.Temperature:85±5°C 3.Time:1000hours. Noapparentdamage Fulfilltheelectrical spec.aftertest. Hightemperature resistance Noapparentdamage Fulfilltheelectrical spec.aftertest. 1.Temperature:150°C±5°C 2.Time:1000hours. Lowtemperature resistance 1.Temperature:-40°C±5°C 2.Time:1000hours. Noapparentdamage Fulfilltheelectrical spec.aftertest. Solderingheatresistance 1.Solderbathtemperature:260±5°C 2.Bathingtime:10±1seconds Noapparentdamage Solderability Thedippedsurfaceoftheterminalshallbe atleast95%coveredwithsolderafterdipped insolderbathof245±5°Cfor3±1seconds. Noapparentdamage (2))StorageCondition (a)Atwarehouse:Thetemperatureshouldbewithin0~30°Candhumidityshould be lessthan60%RH.Theproductshouldbeusedwithin1yearfromthetimeof elivery. (b)Onboard:Thetemperature shouldbewithin-40~85°Candhumidityshould belessthan85%RH. (3)OperatingTemperatureRange Operatingtemperaturerange:-40°Cto+85°C. Recommended ReflowSoldercurve Rev.1.0|7 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA (1))SolderingGunProcedure Notethefollows,incaseofusingsoldergunforreplacement. (a)Thetiptemperaturemustbelessthan350°Cfortheperiodwithin3 seconds byusingsolderinggununder30W. (b)Thesolderingguntipshallnottouchthisproductdirectly. (2)SolderingVolume Notethatexcessofsolderingvolumewilleasilygetcrackthebodyofthisproduct. ApplicationGuide PackageInformation ABCDEFLW 8.00±0.33.50± 0.05 1.75±0.12.00±0.0 5 4.00±0.11.50±0.12.30± 0.1 1.55± 0.1 Device PackageNet Weight Carrier Qty /reel HSF TS2012E245K04 2012 0.0014g Reel 5000pcs RoHScompliant PACKAGINGSTYLE REELDIMENSIONS Rev.1.0|8 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA RevisionHistor y Date Revision Descriptionofchanges 2021-4-21.0FirstVersion 2022-1-21.1 SecondVersion Thecontentsofthisdatasheetaresubjecttochangewithoutnotice. Pleaseconfirmthespecificationsanddeliveryconditionswhenplacingyourorder. ©Copyright2015，Allrightsreserved

Conducted test View: Radiated emission test view: