2BTND-CLIP04clip-on wireless headphones

Rev 1/26/2023 Shenzhen Xiaoqie Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-19-2025 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2BTND-CLIP04 Applicant FRN: 0037746468 [Shenzhen Xiaoqie Electronics Co., Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, [FCC US Agent, LLC] is our designated U.S. agent for service of process for the above referenced FCC ID. [Shenzhen Xiaoqie 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. [FCC US Agent, LLC] 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: [FCC US Agent, LLC] U.S. Agent FRN: [0033402884] Address: [3722 Illinois Avenue, Saint Charles, IL, 60174, USA] Contact Person: [Tim Payne] Tel.: [708-571-3148] Email: [[email protected]] Sincerely, [Shenzhen Xiaoqie Electronics Co., Ltd] [FCC US Agent, LLC] [Jin Li] [Tim Payne] [U.S. Agent signature]

Rev 1/26/2023 Shenzhen Xiaoqie Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-19-2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BTND-CLIP04 [Shenzhen Xiaoqie Electronics Co., Ltd] (“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. [Shenzhen Xiaoqie Electronics Co., Ltd] (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24- 886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, Jin Li Rev 1/26/2023 Shenzhen Xiaoqie Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-19-2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BTND-CLIP04 [Shenzhen Xiaoqie Electronics Co., Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Jin Li

Shenzhen Xiaoqie Electronics Co., Ltd Declaration on Model Differences We, Shenzhen Xiaoqie Electronics Co., Ltd Room 301, Building B12, Yintian Industrial Zone, Yantian Community, Xixiang Street, Bao'an District, Shenzhen City, China Declare that the following product(s): Product Name: clip-on wireless headphones Model No.: Clip04, Clip03 FCC ID: 2BTND-CLIP04 We (Shenzhen Xiaoqie Electronics Co., Ltd) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only differ in the appearance color and model name. The manufacturer would take all the responsibilities for the above product(s). For and on behalf of Shenzhen, China Authorized person Location Name: Jin Li Position: manager Date of issue: 2025-12-1 9 *I hereby declare that I am entitled to sign on behalf of the applicant and that the information supplied is correct and complete.

Rev 11/20/07 Shenzhen Xiaoqie Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BTND-CLIP04 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name* Schematics Block Diagram Operation Description “Schematics.pdf” “Block Diagram.pdf” “Circuit Description.pdf” The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name* Test Setup Photos External Photos Internal Photos User Manual “Appendix A- Test Setup Photo for 8336EU122803W.pdf” “Appendix B- EUT External Photo for 8336EU122803W.pdf” “Appendix C- EUT Internal Photo for 8336EU122803W.pdf” “User Manual.pdf” Sincerely, printed name: Jin Li

C:\Users\Lenovo\Desktop\递交资料\!递交项目\8336EU122803W 安一通信 耳夹式蓝牙耳机 Clip04 FCC ID parker landon\word(TIMCO-FCC ID)\FCC POA Letter.docx Shenzhen Xiaoqie Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 12-19-2025 SUBJECT: FCC Application for FCC ID: 2BTND-CLIP04 To Whom It May Concern: We, the undersigned, hereby authorize Sally Zhang at Shenzhen EU Testing Laboratory Limited on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by _Shenzhen EU Testing Laboratory Limited_ on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Jin Li Shenzhen Xiaoqie Electronics Co., Ltd

Label Location Label Size: 2.5*1cm clip-on wireless headphones Model: Clip04 FCC ID: 2BTND-CLIP04

RF EXPOSURE EVALUATION FCC ID: 2BTND-CLIP04 According to KDB 447498 D01 General RF Exposure Guidance v06 and FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b): Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to qualify for TCB approval. Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (dBm) Distanc e (mm) Calculation results Limit Operating Mode 2402 -1.90 -1.90±1 -0.90 5 0.252 3 BDR&EDR 2441 -2.62 -2.62±1 -1.62 5 0.215 3 2480 -2.07 -2.07±1 -1.07 5 0.246 3 2402 0.51 0.51±1 1.51 5 0.439 3 2441 -0.11 -0.11±1 0.89 5 0.384 3 2480 0.46 0.46±1 1.46 5 0.441 3 Test Results: PASS.

TEST REPORT Report No.: 8336EU122803W Applicant: Shenzhen Xiaoqie Electronics Co., Ltd Address: Room 301, Building B12, Yintian Industrial Zone, Yantian Community, Xixiang Street, Bao'an District, Shenzhen City, China Product Name: clip-on wireless headphones Model No.: Clip04 (refer to clause 2.4) Trademark: N/A FCC ID: 2BTND-C LIP04 Test Standard(s): 47 CFR Part 15.247 Test Result: Pass Date of Receipt: Nov. 28, 2025 Test Date: Dec. 01, 2025 - Dec. 10, 2025 Date of Issue: Dec. 15, 2025 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: Landon Qiu/ Engineer Sally Zhang/ Manager Page 2 of 89 Report No.: 8336EU122803W TRF Version: A01 Revision Record Report Version Issued Date Description Status V0 Dec. 15, 2025 Original Valid Page 3 of 89 Report No.: 8336EU122803W TRF Version: A01 Table of Contents 1 COVER PAGE .................................................................................................................................. 1 2 GENERAL INFORMATION ....................................................................................................................... 5 2.1 APPLICANT INFORMATION .................................................................................................................. 5 2.2 MANUFACTURER INFORMATION .......................................................................................................... 5 2.3 FACTORY INFORMATION ..................................................................................................................... 5 2.4 GENERAL DESCRIPTION OF E.U.T. ..................................................................................................... 5 2.5 TECHNICAL INFORMATION OF E.U.T. ................................................................................................... 6 3 TEST SUMMARY ...................................................................................................................................... 7 3.1 TEST STANDARD ............................................................................................................................... 7 3.2 TEST VERDICT ................................................................................................................................... 7 3.3 TEST LABORATORY ........................................................................................................................... 8 4 TEST CONFIGURATION .......................................................................................................................... 9 4.1 TEST ENVIRONMENT .......................................................................................................................... 9 4.2 TEST EQUIPMENT .............................................................................................................................. 9 4.3 DESCRIPTION OF SUPPORT UNIT ....................................................................................................... 11 4.4 TEST MODE ..................................................................................................................................... 11 4.5 DESCRIPTION OF CALCULATION ........................................................................................................ 11 4.5.1 Field Strength Calculation .................................................................................................. 11 4.5.2 Disturbance Calculation ..................................................................................................... 11 4.6 MEASUREMENT UNCERTAINTY .......................................................................................................... 11 4.7 DEVIATION FROM STANDARDS .......................................................................................................... 12 4.8 ABNORMALITIES FROM STANDARD CONDITION.................................................................................. 12 5 EVALUATION RESULTS (EVALUATION) .............................................................................................. 13 5.1 ANTENNA REQUIREMENT .................................................................................................................. 13 5.1.1 Test Specification .............................................................................................................. 13 5.1.2 Test Data ........................................................................................................................... 13 6 RADIO SPECTRUM MATTER TEST RESULTS (RF) ............................................................................ 14 6.1 CONDUCTED EMISSION AT AC POWER LINE ...................................................................................... 14 6.1.1 Test Specification .............................................................................................................. 14 6.1.2 E.U.T. Operation ................................................................................................................ 14 6.1.3 Test Setup Diagram ........................................................................................................... 14 6.1.4 Test Data ........................................................................................................................... 14 6.2 20DB BANDWIDTH........................................................................................................................... 17 6.2.1 Test Specification .............................................................................................................. 17 6.2.2 E.U.T. Operation ................................................................................................................ 17 6.2.3 Test Setup Diagram ........................................................................................................... 18 6.2.4 Test Data .................................................................................…

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2.4GHz1608ChipAntenna:RANT1608F245C04 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT1608F245C04 (A)(B)(C)(D)(E)(F) ElectricalSpecification DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 1.6x0.8mm( ± 0.1mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=04 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280 °C ) TerminationNi/Au(Leadless) Dimension(mm) L 1.60±0.10 W 0.80 ± 0.10 T 0.80 ± 0.10 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ELECTRICALCHARACTERISTICSS11 Radiation ElectricalCharacteristics Freque ncy EfficPercenGain 2400-1.6472.27%2.38 2450-1.3375.34%2.7 2500-1.5972.98%2.59 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 16087”4K/Reel 4.0±0.5 4.0±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType1608 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz 1 6 0 8 Chip Antenna: RANT1608F245C04 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12019/03/01NewDatasheet 22020/02/22Add2Dradiationcharacteristic Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen.