2AMPL-QCBUDTure Wireless Earbuds

FCCSTATEMENT: ThisdevicecomplieswithPart15oftheFCCRules.Operationissubject tothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation. Warning:Changesormodificationsnotexpresslyapprovedbytheparty responsibleforcompliancecouldvoidtheuser'sauthoritytooperatethe equipment. NOTE:Thisequipmenthasbeentestedandfoundtocomplywiththe limitsforaClassBdigitaldevice,pursuanttoPart15oftheFCCRules. Theselimitsaredesignedtoprovidereasonableprotectionagainst harmfulinterferenceinaresidentialinstallation.Thisequipment generatesusesandcanradiateradiofrequencyenergyand,ifnot installedandusedinaccordancewiththeinstructions,maycauseharmful interferencetoradiocommunications.However,thereisnoguarantee thatinterferencewillnotoccurinaparticularinstallation.Ifthisequipment doescauseharmfulinterferencetoradioortelevisionreception,which canbedeterminedbyturningtheequipmentoffandon,theuseris encouragedtotrytocorrecttheinterferencebyoneormoreofthe followingmeasures: Reorientorrelocatethereceivingantenna. Increasetheseparationbetweentheequipmentandreceiver. Connecttheequipmentintoanoutletonacircuitdifferentfromthatto whichthereceiverisconnected. Consultthedealeroranexperiencedradio/TVtechnicianforhelp. RFwarningstatement: ThedevicehasbeenevaluatedtomeetgeneralRFexposure requirement.Thedevicecanbeusedinportableexposurecondition withoutrestriction.

- Dongshun Tech Development Limited - The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 11/7/2023 U.S. Agent Designation [Dongshun Tech Development Limited] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: [2AMPL-QCBUD]): Name and company of U.S. agent: Stone Trading Limited Physical U. S. address of agent: 6547 N Academy Blvd #2266,Colorado Springs,CO 80918,United States FRN of U.S. agent: 0033401936 Email address of U.S. agent: [email protected] [Stone Trading Limited] acknowledges their obligation to accept service of process on behalf of [Dongshun Tech Development Limited]. [Dongshun Tech Development Limited] with the FRN [0026643338] accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanentl y terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm th e above and that we are aware of the application requirements listed under § 2.911(d)(7). Sincerely, Signature [Name] Roi Fang [Title] Managers [Company] Dongshun Tech Development Limited Signature [Name of U.S. agent] Dongmei Fang [Title of U.S. agent] Manager [Company of U.S. agent] Stone Trading Limited 48_[mo del] US_Agent_2.911(d)(7) - U, V04

Dongshun Tech Development Limited The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 11/7/2023 To whom it may concern: We, [Dongshun Tech Development Limited], hereby certif y that the equipment for which authorization is sought (FCC ID: [2AMPL-QCBUD]) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the fi lin g of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist ) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). Sincerely, Signature [Name] Roi Fang [Title] Managers [Company] Dongshun Tech Development Limited 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V02

EXTERNAL PHOTOGRAPH ---------------- End ----------------

Label Location On EUT Label FCC ID: 2AMPL-QCBUD

INTERNAL PHOTOGRAPH Ceramic Antenna ---------------- End ----------------

RF EXPOSURE EVALUATION FCC ID: 2AMPL-QCBUD According to 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 eva luation 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) Distance (mm) Calculation results Limit Operating Mode 2402 -2.74 -2.74±1 -1.74 5 0.208 3 BDR&EDR 2441 -2.35 -2.35±1 -1.35 5 0.229 3 2480 -3.00 -3.00±1 -2.00 5 0.199 3 2402 -1.71 -1.71±1 -0.71 5 0.263 3 2441 -1.34 -1.34±1 -0.34 5 0.289 3 2480 -2.04 -2.04±1 -1.04 5 0.248 3 2402 -1.51 -1.51±1 -0.51 5 0.276 3 2441 -1.02 -1.02±1 -0.02 5 0.311 3 2480 -1.67 -1.67±1 -0.67 5 0.270 3 Test Results: PASS.

Project No.: ZKT-230825L6692E Page 1 of 76 FCC TEST REPORT FCC ID: 2AMPL-QCBUD Report Number. ................................ : ZKT-230825L6692E Date of Test ......................................... Aug. 23, 2023 to Sep. 04, 2023 Date of issue ..................................... : Nov. 06, 2023 Total number of pages ....................... 61 Test Result ...................................... : PASS Testing Laboratory. ........................ : Shenzhen ZKT Technology Co., Ltd. Address ........................................... : 1/F , No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name ......................... : Dongshun Tech Development Limited Address ........................................... : 2F, building 7, Huayisheng Industrial Park, Fenghuang Community, Fuyong Street, Bao'an district, Shenzhen, China Manufacturer's name ................... : Dongshun Tech Development Limited Address ........................................... : 2F, building 7, Huayisheng Industrial Park, Fenghuang Community, Fuyong Street, Bao'an district, Shenzhen, China Test specification: Standard ........................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test procedure ................................. : / Non-standard test method .............. : N/A Test Report Form No. .................... : TRF-EL-112_V0 Test Report Form(s) Originator .... : ZKT Testing Master TRF ................................... : Dated: 2021-04-22 This device described above has been tested by ZKT, 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 ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................. : Ture Wireless Earbuds Trademark ....................................... : QUIKCELL Model/Type reference ....................... : QAIRBUD100, QAIRBUD100-GRY, QAIRBUD100-PNK, QAIRBUS100 Ratings .............................................. : Input: DC 5V, 0.5A Battery: DC 3.7V, 45mAh for one earbud Project No.: ZKT-230825L6692E Page 2 of 76 Testing procedure and testing location: Testing Laboratory ..................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Tom Zou Te s ted by (name + signature) .................... : Jackson Fang Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: ZKT-230825L6692E Page 3 of 76 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 ......................................................................................... 9 3.3 Support Equipment .................................................................................................. 9 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 ..................................................................................................... 13 4.1.5 EUT OPERATING CONDITIONS ....................................................................... 14 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 .............................................................. 18 4.2.4 TEST SETUP ..................................................................................................... 18 4.2.5 EUT OPERATING CONDITIONS ....................................................................... 19 4.2.6 TEST RESULTS ................................................................................................. 19 5. RADIATED BAND EMISSION MEASUREMENT ................................................... 25 5.1 Test Requirement: ................................................................................................. 25 5.2 TEST PROCEDURE ............................................................…

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version01 Dongshun Tech Development Limited Declaration concerning Antenna Specification It i s hereby declared that the product Model No.: QAIRBUD100, QAIRBUD100-GRY, QAIRBUD100-PNK, QAIRBUS100 FCC ID: 2AMPL-QCBUD fulfill s the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for Ceramic antenna type(s) described below: Model No. of antenna: CA-2450-31 Type of antenna: Ceramic Antenna Gain of the antenna: 2.18 dBi Frequency range: 2400-2480 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: Dongshun Tech Development Limited Address: 2F, building 7, Huayisheng Industrial Park, Fenghuang Community, Fuyong Street, Bao'an district, Shenzhen, China City: Shenzhen ZIP / Postal code: Country: China Place: Place: Date: 2023-11-07 Signature:

SMD CERAMIC ANTENNA Data Sheet CA-2450-31 For2400-2484MHz 3.2x1.6mm[EIA1206] . Rev.1.0 SMDCERAMICANTENNA DataSheet Rev.1.0| 2 L WA H 3.10 ± 0.10 1.55 ± 0.10 0.40 ± 0.200.50 ± 0.10 FEATURES ・Lightweight,compact ・ Widebandwidth,lowcost ・Built-inantennawithhighgain APPLICATIONS ・Bluetooth ・ IEEE802.11g/b ・Zigbeesystems,etc... SHAPESANDDIMENSIONSDimensionsinmm SMD CERAMICANTENNA Data Sheet Rev. 1.0 | 3 ELECTRICSPECIFICATIONS Product type CA-2450-31 Frequency Range 2400~2480MHZ Gain (dBi) MAX 2.18 PART NUMBERING SYSTEM CA-2450-31- A Material Frequency Size Type SMD CERAMICANTENNA DataSheet Rev.1.0| 4 EVALUATIONBOARD SMD CERAMICANTENNA Data Sheet Rev. 1.0 | 5 SMD CERAMICANTENNA Data Sheet Rev. 1.0 | 5 RADIATION PATTE RNS 2.4GHz WLAN BAND ◎ 3D Gain Pattern (240 0 MHz) ◎ 3D Gain Pattern (2440 MHz) 2.18 2.16 1.34 1.69 0.50.78 -0.34 -0.13 -1.18 -1.05 -2.02-1.96 -2.86-2.87 -3.7 -3.78 -4.54 -4.69 -5.38-5.61 -6.22 -6.52 -7.07 -7.43 -7.91-8.34 -8.75 -9.26 -9.59 -10.2 -10.4-11.1 -11.3 -12 -12.1 -12.9 ◎ 3D Gain Pattern (2480 MHz) 1.81 1.09 0.36 -0.37 -1.09 -1.82 -2.54 -3.27 -4 -4.72 -5.45 -6.18 -6.9 -7.63 -8.35 -9.08 -9.81 -10.5 SMDCERAMICANTENNA DataSheet Rev.1.0| 6 FREQUENCYCHARACTERISTICS EFFICIENCYANDVSWR SMDCERAMICANTENNA DataSheet Rev.1.0| 7 60 - 180s RECOMMENDEDREFLOWPROFILE Tim e ( s ) 20 - 40s Pr e - h ea tin g 60 - 150s 260 ° C 217° C 150-20 ° C T e m p e r a t u r e ( ° C ) SMDCERAMICANTENNA DataSheet Rev.1.0| 8 Feature S p ecifications Tolerances W 8 .00 ±0.30 P4.00±0.10 E 1.7 5 ± 0 .1 0 F3.50±0.10 P22.00±0.10 D1.50 + 0.10 - 0 . 00 P o 4. 00 ± 0 .1 0 10Po40.00±0.20 PACKAGINGSTYLE REELDIMENSIONS TAPEDIMENSIONS TypingQuantity:5000piecesper7”reel SMD CERAMIC ANTENNA Data Sheet CA-2450-31-SE For2400-2484MHz 3.2x1.6mm[EIA1206] CA-2450-52-SE For2400-2484MHz 5.0x2.5mm[EIA5025] . Rev.1.0 SMDCERAMICANTENNA DataSheet Rev.1.0|2 FEATURES ・Lightweight,compact ・ Widebandwidth,lowcost ・Built-inantennawithhighgain APPLICATIONS ・Bluetooth ・ IEEE802.11g/b ・Zigbeesystems,etc... SHAPESANDDIMENSIONSDimensionsinmm CA-2450-31-SE [Topview] 3.2±0.1 [Bottomview] 3.2±0.1 RECOMMENDEDLANDPATTERNOLDERRESISTPATTERN DimensionsinmmDimensionsinmm 0.64 1.160.48 1 . 6 ± 0 . 1 0 1 . 5 5 ± 0 . 1 1 . 5 5 SMDCERAMICANTENNA DataSheet Rev.1.0|3 CA-2450-52-SE [Topview] [Bottomview] 5.0±0.1 RECOMMENDEDLANDPATTERNOLDERRESISTPATTERN Dimensionsinmm 0.40 Dimensionsinmm 4.20 0.40 ELECTRICSPECIFICATIONS Producttype CA-2450-31-SE CA-2450-52-SE CenterFrequencyRange 2450MHZ InputImpedance 50  PARTNUMBERINGSYSTEM CA-2450-31/52-SE Material Frequency Size Series 2 . 5 ± 0 . 1 0 2 . 5 0 SMDCERAMICANTENNA DataSheet Rev.1.0|4 Z Chipantenna EVALUATIONBOARD Y PCB X SMDCERAMICANTENNA DataSheet Rev.1.0|5 RADIATIONPATTERNS 2.4GHzWLANBAND 300 -Y 330 +Z 0 0[dBd] 30 -10 -20 60 -30 -40 300 -Y +X 330 0 0[dBd] 30 -10 -20 60 -30 -40 270 90 270 90 +Y +Y 240120 240120 210 - Z 180 150 210 -X 180 150 SMDCERAMICANTENNA DataSheet Rev.1.0|6 FREQUENCYCHARACTERISTICS EFFICIENCYANDVSWR 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 2200 2300 24002500 2600 2700 Frequency[MHz] V . S . W . R . SMDCERAMICANTENNA DataSheet Rev.1.0|7 60 - 180s RECOMMENDEDREFLOWPROFILE Tim e ( s ) 20 - 40s Pr e - h ea tin g 60 - 150s 260 ° C 217° C 150-20° C T e m p e r a t u r e ( ° C ) SMDCERAMICANTENNA DataSheet Rev.1.0|8 Feature S p ecifications Tolerances W 8.00 ±0.30 P4.00±0.10 E 1.7 5 ± 0 .1 0 F3.50±0.10 P22.00±0.10 D1.50 + 0.10 - 0 . 00 P o 4. 00 ± 0 .1 0 10Po40.00±0.20 PACKAGINGSTYLE REELDIMENSIONS TAPEDIMENSIONS 3216TypingQuantity:5000piecesper7”reel 5025TypingQuantity:4000piecesper13”reel Feature S p ecifications Tolerances W12.00±0.30 P4.00±0.10 E 1.7 5 ± 0 .1 0 F5.50±0.10 P22.00±0.10 D1.50 + 0.10 - 0.00 P o 4. 00 ± 0 .1 0 10Po40.00±0.20

EUT TEST PHOTO