2BHMQ-CT3PROBluetooth headset

FCCWarningStatement:Changesormodificationstothisunitnotexpressly approvedbythepartyresponsibleforcompliancecouldvoidtheuser’s authoritytooperatetheequipment.Thisequipmenthasbeentestedandfound tocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart15ofthe FCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainst harmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates, usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedin accordancewiththeinstructions,maycauseharmfulinterferencetoradio communications. However,thereisnoguaranteethatinterferencewillnotoccurinaparticular installation.Ifthisequipmentdoescauseharmfulinterferencetoradioor televisionreception,whichcanbedeterminedbyturningtheequipmentoffand on,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreof thefollowingmeasures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. - Connecttheequipmentintoanoutletonacircuitdifferentfromthatto whichthereceiverisconnected. - Consultthedealeroranexperiencedradio/TVtechnicianforhelp. ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothe followingtwoconditions:(1)thisdevicemaynotcauseharmfulinterference, and(2)thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation. FCCRadiationExposureStatement ThedevicehasbeenevaluatedtomeetgeneralRFexposurerequirement.The devicecanbeusedinportableexposureconditionwithoutrestriction.

ShenzhenXianingTechnologyCo.,Ltd 2.911(d)(5)(ii)ApplicantAttestationv1.3 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:ShenzhenXianingTechnologyCo.,Ltd Address:301,Building13,SanXiang,SanQu,HualongxinVillage,BujiStreet, LonggangDistrict,ShenzhenChina ProductName:Bluetoothheadset FCCID:2BHMQ-CT3PRO Model(s):CT3PRO 2.911(d)(5)(ii)Applicantfiling We,[ShenzhenXianingTechnologyCo.,Ltd](“theapplicant”)certifythat,asofthedateofthefiling oftheapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,established pursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:ComyxiaoDate:2024.8.13 TitleandCompanyname:Manager/ShenzhenXianingTechnologyCo.,Ltd NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen Xianing Technology Co., Ltd 2.911 (d)(7)USA Agent v1.5 Section 2.911(d)(7) USA Agent for Service of Process Company name:Shenzhen Xianing Technology Co., Ltd Address:301, Building 13, San Xiang, San Qu, Hualongxin Village, Buji Street, Longgang District, Shenzhen China Product Name:Bluetooth headset FCCID:2BHMQ-CT3PRO Model(s):CT3 PRO 2.911(d)(7) USA Designated Agent for Service of Process We, [Shenzhen Xianing Technology Co., Ltd] (“the applicant”) designate [Stone Trading Limited] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either we the grantee have permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Company name: Stone Trading Limited USA Address: 6547 N Academy Blvd #2266, Colorado Springs, CO 80918, United States FRN Number: 0033401936 Contact Name: Dongmei Fang Telephone No: +12134573118 Email: [email protected] Applicant Company name: Shenzhen Xianing Technology Co., Ltd Address:301, Building 13, San Xiang, San Qu, Hualongxin Village, Buji Street, Longgang District, Shenzhen China Grantee FRN Number：0035694686 FCC Grantee Code:2BHMQ Contact Name:Comy xiao Telephone No:18620378283 Email:[email protected] Signature: Title: Manager Signature: Title:Manager Date: 2024.8.13 Date: 2024.8.13 Shenzhen Xianing Technology Co., Ltd 2.911 (d)(7)USA Agent v1.5 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

ShenzhenXianingTechnologyCo.,Ltd AgentAuthorization Company:ShenzhenXianingTechnologyCo.,Ltd Address:301,Building13,SanXiang,SanQu,HualongxinVillage,BujiStreet, LonggangDistrict,ShenzhenChina ProductName:Bluetoothheadset ModelNumber(s):CT3PRO ProductDescription:Bluetoothheadset WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2024.8.13 Name:Comyxiao Title:Manager Company:ShenzhenXianingTechnologyCo.,Ltd

ShenzhenXianingTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024.8.13 Subject;RequestforConfidentiality FCCID:2BHMQ-CT3PRO ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:Comyxiao Title:Manager

EUTPHOTO(ExternalPhotos) TestMode:CT3PRO ※※※※※ENDOFREPORT※※※※※

Labelandlabellocation FCCIDLABEL: High:1cm Wide:2cm LabelLocation: FCCID:2BHMQ-CT3PRO

EUTPHOTO(InternalPhotos) TestMode:CT3PRO LeftANT ※※※※※ENDOFREPORT※※※※※ RightANT

FCCID:2BHMQ-CT3PRO RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093, UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]*[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBR/EDR Mode Frequency (MHz) MaxPower (dBm) MaxPower (mW) Min.Distance (mm) Calc. thresholds limit GFSK2441-0.141 0.97 5 0.3031 3.0 π/4-DQPSK2441-0.106 0.98 5 0.3062 3.0 8-DPSK2441-0.100 0.98 5 0.3062 3.0 Conclusion: 1.[(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]<3.0. 2.SARTestExclusionThresholdsis3.0forseparationdistance5mm.Therefore,SAR testisnotrequired.

SMD CERAMIC ANTENNA Data Sheet CS-2450-16-B For 2400-2500MHz 1.6x0.8x0.4mm [EIA1608] Chip Antenna Feature nLight weight, compact nWide bandwidth, low cost nBuilt-in antenna with high gain nOperating Temp. : -40°C~+85°C Application nBluetooth nWLAN 2.4 nWiFi 5/6/6E nUWB CS-2450-16-B Electrical Characteristics per line(TA=25°C) Parameter Specification Units Frequency Band 2400~2500 MHz Polarization Linear *Peak Gain 2.78 dBi *Peak Efficiency 80.25 % Impendance 50 Ω Test condition: Test board size 70*60 mm; Matching circuit: Pi matching circuit will be required. Product Dimension TECHNOLOGY Units:mm W A L A H LWHA 1.60±0.200.80±0.200.40±0.100.2±0.07 Recommend PCB Layout1 Chip Antenna Test condition: Test board size 70*60 mm; Top Layer (unit mm) Bottom Layer (unit mm) Feeding line:50Ω Chip Antenna E1(0201) 1.5 3.5 1.0 0.5 0.5 0.5 2.0 E2(0201) 1.5 3.5 2.0 E3(0201) 0.5 TECHNOLOGY ANT 1.1 Note:The spacing between antenna pads should not be ＜ 1.1mm 注意:天线焊盘内间距不能＜1.1mm 6.5 6.5 1.1 0.5 0.8 Recommend PCB Layout2 Chip Antenna Test condition: Test board size 70*60 mm; Chip Antenna TECHNOLOGY Top Layer (unit mm) Bottom Layer (unit mm) Feeding line:50Ω E1(0201) 1.5 2.0 0.5 0.5 0.5 10 1.5 10 E2(0201) E3(0201) 0.5 Note:The spacing between antenna pads should not be ＜ 1.1mm 注意:天线焊盘内间 距不能＜1.1mm 1 . 1 1.1 0.5 0.8 ANT PAD E2(0201) 2.0 1.5 Typical Characteristics Fig. 1 Return Loss Radiation Pattern The Gain pattern is measured in FAR -field chamber. DUT is placed on the table of rotator , a standard horn antenna and Vector Network Analyzer is used to collect data. Fig.2 FAR-field Chamber Chip Antenna TECHNOLOGY Chip Antenna Equivalent circuit: Chip Antenna RF chip ANT E1 E2 E3 Frequency 2400MHz2450MHz2500MHz Avg. gain - 1.92- 1.35- 1.56 Peak gain 1.792.782.66 Efficiency 74.5580.2576.98 Radiation Performance: 2D Gain Pattern X-Y Plane Y-Z Plane X-Z Plane TECHNOLOGY Item Condition Specification Thermal shock 1. 30±3 minutes at -40 ° C±5 ° C , 2. Convert to +105 ° C (5 minutes) 3. 30±3 minutes at +105 ° C±5 ° C , 4. Convert to -40 ° C (5 minutes) 5 . Total 100 continuous cycles No apparent damage Fulfill the electrical spec. after test. Humidity resistance 1. Humidity: 85% R.H. 2 . Temperature: 85±5 ° C 3 . Time: 1000 hours . No apparent damage Fulfill the electrical spec. after test. High temperature resistance No apparent damage Fulfill the electrical spec. after test. 1 . Temperature: 150 ° C±5 ° C 2 . Time: 1000 hours . Low temperature resistance 1 . Temperature: -40 ° C±5 ° C 2 . Time: 1000 hours . No apparent damage Fulfill the electrical spec. after test. Soldering heat resistance 1. Solder bath temperature : 260±5°C 2. Bathing time: 10±1 seconds No apparent damage Solderability The dipped surface of the terminal shall be at least 95% covered with solder after dipped in solder bath of 245±5°C for 3±1 seconds . No apparent damage (2) Storage Condition (a)At warehouse: The temperature should be within 0 ~ 30°C and humidity should be less than 60% RH.The product should be used within 1 year from the time of elivery. (b)On board: The temperature should be within -40 ~85°C and humidity should be less than 85% RH. ( 3) Operating Temperature Range Operating temperature range : -40°C to +85°C . Recommended Reflow Solder curve Chip Antenna TECHNOLOGY External Dimensions L*W (mm) 1.6*0.8 Central Frequency 2450 MHz Product Series: Chip Antenna Marking ABCDEFLW 8.00±0.33.50± 0.051.75±0.12.00±0.054.00±0.11.50±0.12.30± 0.11.55± 0.1 Part Number System CS - 2450 - 16-B Package Information Chip Antenna ( 1) Soldering Gun Procedure Note the follows, in case of using solder gun for replacement. (a) The tip temperature must be less than 350°C for the period within 3 seconds by using soldering gun under 30 W. (b) The soldering gun tip s hall not touch this product directly. (2) Soldering Volume Note that excess of soldering volume will easily get crack the body of this product. TECHNOLOGY The contents of this data sheet are subject to change without notice . Please confirm the specifications and delivery conditions when placing your order. © Copyright 2015 , Keweixin Electronics All rights reserved 订货信息Order Information Chip Antenna TECHNOLOGY Date Revision Description of changes 2023-01-03 1.0 First Version 2023-11-151.1 Add PCB Layout 2024-01-181.2 Modify PCB layout Device Package Net Weight Carrier Quantity HSF Status CS-2450-16-B 1608 0.002g Tape&Reel 5000pcs RoHS compliant Revision history

Project No.: ZKT-2408029241E Page 1 of 66 FCC TEST REPORT FCC ID:2BHMQ-CT3PRO Report Number. .................................... : ZKT-2408029241E Date of Test ...................................................... :Aug. 05, 2024 to Aug. 12, 2024 Date of issue.........................................:Aug. 12, 2024 Total number of pages.........................66 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 ............................. : Shenzhen Xianing Technology Co., Ltd Address...............................................: 301, Building 11, San Xiang, San Qu, Hualongxin Village, Buji Street, Longgang District, Shenzhen China Manufacturer's name ...................... : Shenzhen Xianing Technology Co., Ltd Address ............................................... : 301, Building 11, San Xiang, San Qu, Hualongxin Village, Buji Street, Longgang 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........................: / Test Report Form(s) Originator.....: ZKT Testing Master TRF........................................: Dated: 2020-01-06 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 itis 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.....................................:Bluetooth headset Trademark ........................................... :Blitzrock Model/Type reference.........................: CT3 PRO Ratings..................................................: Input: 5V0.5A Battery: DC 3.7V, 60mAh, 0.222Wh Project No.: ZKT-2408029241E Page 2 of 66 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 Jim Liu Tested by (name + signature) ....................... : Jackson Fang Reviewer (name + signature) ....................... : Lake Xie Approved (name + signature) ....................... : Project No.: ZKT-2408029241E Page 3 of 66 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 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...................................................................................18 4.2.4 TEST SETUP............................................................................................................................18 4.2.5 EUT OPERATING CONDITIONS....…

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EUTTESTPHOTO TestMode:CT3PRO