2BBNW-XG99Open style audio headphones

(ShenZhenXinTuCenturyTechnologyCo.,Ltd.) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-8-28 FCCID:2BBNW-XG99 Ref.#1:AttestationStatementsPart2.911(d)(5)(i)Filing (ShenZhenXinTuCenturyTechnologyCo.,Ltd.)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Ref.#2:AttestationStatementsPart2.911(d)(5)(ii)Filing ( ShenZhenXinTuCenturyTechnologyCo.,Ltd. )certifiesthat,asofthedateofthefilingof theapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Applicant:ShenZhenXinTuCenturyTechnologyCo.,Ltd. Address:No.5/FA,BuildingA1,AnlelndustrialZone,172HangchengAvenue,Hangcheng Street,BaoanDistrict,Shenzhen 2024-8-28 ContactPerson:ZhiPengCai Tel.:13713727600 Email:[email protected] Sincerely, Signature:

ShenZhenXinTuCenturyTechnologyCo.,Ltd. * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter 8/28/2024 FederalCommunicationsCommission AuthorizationandEvaluationDivision 1435OaklandMillsRoad Columbia,MD21046 ATTN.:ReviewingEngineer FCCID:2BBNW-XG99 FRN:0033884602 Persection2.911(d)(7)oftheFCCrules, (ShenZhenXinTuCenturyTechnologyCo.,Ltd.)certifiesthattheequipmentforwhich authorizationissoughtisdesignatedtothefollowingU.S.agent*forserviceofprocess: FederalRegistrationNumber(FRN):0033701590 CompanyName:UUXGROUPINC PhysicalU.S.CompanyAddress:36South18thAvenue,SuiteABrighton,COUSA80601 County:Adams Agentname:JackFu Agentphone ： (213)375-3998 AgentEmailAddress:[email protected] Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:AgentSigned(ifdifferenttoApplicant): Signed:Signed: Printedname:ZhiPengCai Title: Manager CompanyName:ShenZhenXinTu CenturyTechnologyCo.,Ltd. Date:8/28/2024 Printed name:Jack Fu Title: Manager Company Name: UUX GROUP INC Date: 8/28/2024

一 RFPCB COMPANY 深圳斯特普科技有限公司Shenzhen Stepu Technology Co., LTD DESCRIPTIONPCB antenna OUR MODEL NO ST005 Central Frequency 2450 MHz Bandwidth 120 (Min.) MHz Peak Gain -1.2 dBi Impedance 50 Ohm Operating Temperature -40～+85 °C Shenzhen Baoan District Xixiang Street Nanchang Community Huafeng Century Technology A3 plant 401 二 .Return Loss 三．2D Radiation Patterns

ShenZhenXinTuCenturyTechnologyCo.,Ltd. Date：2024-8-28 ProductModelNumber:XG99 FCCID：2BBNW-XG99 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatORGANIZATION.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyORGANIZATION.onourbehalf shallhavethesameeffectasactsofourown. Name:ZhiPengCai By: ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:13713727600 Onbehalfof:ShenZhenXinTuCenturyTechnologyCo.,Ltd.

ShenZhenXinTuCenturyTechnologyCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:August28,2024 Subject;RequestforConfidentiality FCCID:2BBNW-XG99 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices 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:ZhiPengCai Title:Manager

Siza：L:15mm*W:5mm FCCID:2BBNW-XG99

FCCID:2BBNW-XG99 RFEXPOSUREEVALUATIONMETHOD AccordingtoKDB447498D01GeneralRFExposureGuidancev06,Unlessspecificallyrequiredbythe publishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluation forgeneralpopulationexposureconditions,bymeasurementornumericalsimulation,isnotrequiredwhen thecorrespondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtestexclusion thresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]·[√f (GHz) ] ≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) EUTSpecification EUT Openstyleaudioheadphones Frequencyband (Operating) WLAN:2.412GHz~2.462GHz WLAN:5.150GHz~5.250GHz WLAN:5.725GHz~5.850GHz OthersBT:2402-2480MHz DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure (S=1mW/cm 2 ) AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower-1.595dBm(0.00069W) Antennagain(Max)-1.2dBi EvaluationappliedMPEEvaluation SAREvaluation FCCID:2BBNW-XG99 RFEXPOSUREEVALUATIONMETHOD SARTestExclusionThresholdsfor100MHz – 6GHzand ≤ 50mm ApproximateSARTestExclusionPowerThresholdsatSelectedFrequenciesandTestSeparation DistancesareillustratedinthefollowingTable. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)] · [ √ f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. FCCID:2BBNW-XG99 Maximummeasuredtransmitterpower. BR+EDR Operating Mode Freque ncy Measur ed Power max. power Antenna Gain min.test separation distance [√f(GHz)] ResultLimit (MHz)(dBm)(mW)(dBi)(mm) GFSK 2402-2.5340.56-1.251.5500.13123 2441-2.2490.60-1.251.5620.14123 2480-2.8910.51-1.251.5750.12283 π/4DQPSK 2402-2.1100.62-1.251.5500.14463 2441-1.5950.69-1.251.5620.16423 2480-2.2160.60-1.251.5750.14343 8-DPSK 2402-1.7210.67-1.251.5500.15823 2441-2.4020.58-1.251.5620.13633 2480-2.9170.51-1.251.5750.12213 Remark:Thebestcasegainoftheantennais-1.2dBi. -1.2dBilogarithmictermsconverttonumericresultisnearly0.76 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattest separationdistances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)] ThetestResultislessthan3.0for1-gSARand≤7.5for10-gextremitySAR. Conclusion:NoSARisrequired.

BSL Testing Co.,Ltd. Report No.: BSL24080126P01-R01 Page 1 of 42 FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No........................:BSL24080126P01-R01 FCC ID. ................................................ :2BBNW-XG99 Compiled by ( position+printed name+signature)..: Engineer/ Cindy Zheng Supervised by ( position+printed name+signature) .. : Manager/Haley Wen Approved by ( position+printed name+signature) .. : RF Manager/ Vivian Jiang Date of issue.........................................:August 26, 2024 Testing Laboratory Name ................ : BSL Testing Co., Ltd. Address ................................................. : 1/F, Building B, Xinshidai GR Park,Shiyan Street, Bao'an District, Shenzhen,Guangdong, 518052, People’s Republic of China Applicant’s name...............................: ShenZhen XinTu Century Technology Co.,Ltd. Address ................................................. : No. 5/FA, Building A1, Anle lndustrial Zone, 172 Hangcheng Avenue, Hangcheng Street, Baoan District, Shenzhen Test specification .............................. : Standard ................................................ :FCC Part 15.247 BSL Testing Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the BSL Testing Co., Ltd. is acknowledged as copyright owner and source of the material. BSL Testing Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description........................: Open style audio headphones Trade Mark............................................: N/A Manufacturer ......................................... : ShenZhen XinTu Century Technology Co.,Ltd. Model/Type reference.........................: XG99 Listed Models......................................: N/A Modulation ........................................... :GFSK, Π/4DQPSK, 8DPSK Frequency..............................................From 2402MHz to 2480MHz Rating.....................................................:DC 3.7V From Battery Result.....................................................:PASS BSL Testing Co.,Ltd. Report No.: BSL24080126P01-R01 Page 2 of 42 TEST REPORT Equipment under Test:Open style audio headphones Model /Type:XG99 Listed Models:N/A Model Declaration:N/A Applicant : ShenZhen XinTu Century Technology Co.,Ltd. Address: No. 5/FA, Building A1, Anle lndustrial Zone, 172 Hangcheng Avenue, Hangcheng Street, Baoan District, Shenzhen Manufacturer : ShenZhen XinTu Century Technology Co.,Ltd. Address: No. 5/FA, Building A1, Anle lndustrial Zone, 172 Hangcheng Avenue, Hangcheng Street, Baoan District, Shenzhen Test Result:PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. BSL Testing Co.,Ltd. Report No.: BSL24080126P01-R01 Page 3 of 42 Contents 1T E S T S T A N D A R D S ...................................................................................................................4 2S U M M A R Y ...................................................................................................................................... 5 2.1General Remarks5 2.2Product Description5 2.3Equipment Under Test5 2.4Short description of the Equipment under Test (EUT)5 2.5EUT operation mode6 2.6Block Diagram of Test Setup6 2.7Related Submittal(s) / Grant (s)6 2.8Modifications6 3T E S T E N V I R O N M E N T ............................................................................................................. 7 3.1Address of the test laboratory7 3.2Test Facility7 3.3Environmental conditions7 3.4Summary of measurement results8 3.5Statement of the measurement uncertainty8 3.6Equipments Used during the Test9 4T E S T C O N D I T I O N S A N D R E S U L T S ............................................................................1 1 4.1AC Power Conducted Emission11 4.2Radiated Emission14 4.3Maximum Peak Output Power20 4.420dB Bandwidth23 4.5Frequency Separation26 4.6Number of hopping frequency28 4.7Time of Occupancy (Dwell Time)30 4.8Out-of-band Emissions33 4.9Pseudorandom Frequency Hopping Sequence39 4.10 Antenna Requirement40 5T E S T S E T U P P H O T O S O F T H E E U T ..........................................................................4 1 6P H O T O S O F T H E E U T .........................................................................................................4 2 BSL Testing Co.,Ltd. Report No.: BSL24080126P01-R01 Page 4 of 42 1TESTSTANDARDS The tests were performed according to following standards: FCC Rules Part 15.247 : Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850MHz. ANSI C63.10-2013 : American National Standard for Testing Unlicensed Wireless Devices BSL Testing Co.,Ltd. Report No.: BSL24080126P01-R01 Page 5 of 42 2 SUMMARY 2.1 General Remarks Date of receipt of test sample: August 20, 2024 Testing commenced on:August 20, 2024 Testing concluded on: August 26, 2024 2.2 Product Description Product Name: Open style audio headphones Model/Type reference: XG99 Power supply:DC 3.7V from battery Adapter information (Auxiliary test supplied by testing Lab） Model: EP-TA20CBC Input: AC 100-240V 50/60Hz Output: DC 5V 2A Firmware Version: EPTA5.14.2 Manufacture: Huizhou Dongyang Yienbi Electronics Co., Ltd Hardware version:/ Software version:/ Testing sample ID： BSL24080126P01-R01-1# (Engineer sample) BSL24080126P01-R01-2# (Normal sample) Bluetooth : Supported Type:Bluetooth BR/EDR Modulation:GFSK, π/4DQPSK, 8DPSK Operation frequency:2402MHz~2480MHz Channel number:79 Channel separation:1MHz Antenna type: PCB Antenna Antenna gain:-1.2 dBi 2.3 Equipment Under Test Power supply system utilised Power supply voltage: ○ 230V / 50 Hz ○ 120V / 60Hz …

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FCCID：2BBNW-XG99 FCCID：2BBNW-XG99