2ACP4BTO200Bluetooth Earbuds with charging case

The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2ACP4BTO200 BTO200, BTO200B, BTO200W, BTO200C, BTO250, BTO255 We, Applicant Company Name: Sentry Industries limited Address: UNIT 904, 9/F CHINACHEM GOLDEN PLAZA, 77 MODY ROAD, TSIM SHA TSUI EAST, KOWLOON, HONG KONG, China Phone: +852-23684777 certify 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. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. We certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-10-11 Signature Date Name / Title: Peetu Melwani / Manager Company: Sentry Industries limited Address: UNIT 904, 9/F CHINACHEM GOLDEN PLAZA, 77 MODY ROAD, TSIM SHA TSUI EAST, KOWLOON, HONG KONG, China Phone: +852-23684777 Fax: +852-23684777 E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2ACP4BTO200 BTO200, BTO200B, BTO200W, BTO200C, BTO250, BTO255 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-10-11 Signature Date Name / Title: Peetu Melwani / Manager Company: Sentry Industries limited Address: UNIT 904, 9/F CHINACHEM GOLDEN PLAZA, 77 MODY ROAD, TSIM SHA TSUI EAST, KOWLOON, HONG KONG, China Phone: +852-23684777 Fax: +852-23684777 E-Mail: [email protected]

Sentry Industries limited UNIT 904, 9/F CHINACHEM GOLDEN PLAZA, 77 MODY ROAD, TSIM SHA TSUI EAST, KOWLOON, HONG KONG, China Date: October 11, 2024 FCC ID: 2ACP4BTO200 Model Number: BTO200, BTO200B, BTO200W, BTO200C, BTO250, BTO255 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Sentry Industries limited hereby declare that our product (Bluetooth Earbuds with charging case) Model Number: BTO200, BTO200B, BTO200W, BTO200C, BTO250, BTO255 board, Schematic, Hardware version, Software version, structure and internal photos are same, named and appearance differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, (Signed) Name / Title: Peetu Melwani / Manager Company: Sentry Industries limited Address: UNIT 904, 9/F CHINACHEM GOLDEN PLAZA, 77 MODY ROAD, TSIM SHA TSUI EAST, KOWLOON, HONG KONG, China Phone: +852-23684777 Fax: +852-23684777 E-Mail: [email protected]

Page1of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity ExternalPhotosoftheEUT Fig.1 Fig.2 Page2of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 Page3of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Page4of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7

Page1of1FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity LABELANDLOCATION (Size:L4.5cmxW2.0cm) LabelLocation BluetoothEarbudswithchargingcase M ode l:BT O 2 00 FCCID:2ACP4BTO200

Page1of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity InternalPhotosoftheEUT Fig.1 Fig.2 Page2of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 BTAntenna Page3of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Page4of4FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7 Fig.8

Page1of3FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCCRFExposureEvaluation 1.ProductInformation FCCID:2ACP4BTO200 Productname: BluetoothEarbudswithchargingcase TestModel: BTO200 AdditionalModelNo.:BTO200B,BTO200W,BTO200C,BTO250,BTO255 ModelDeclaration:PCBboard,structureandinternalofthesemodel(s)arethesame, Sonoadditionalmodelsweretested Ratings:Input:DC5V Headset:DC3.7VbyLi-ionBattery(30mAh) Chargingcase:DC3.7VbyLi-ionBattery(180mAh) HardwareVersion: XL-7500-16T-V1.3-230328 SoftwareVersion Y00111-XL-7500-BTO200-AB5656C2-20240905(BE173D1D_7C9 9FB57 Bluetooth:2402MHz~2480MHz ChannelNumber:79channelsforBluetoothV5.4(DSS) ChannelSpacing:1MHzforBluetoothV5.4(DSS) ModulationType:GFSK,π/4-DQPSKforBluetoothV5.4(DSS) BluetoothVersion:V5.4 AntennaType:PCBAntenna AntennaGain: 0.8dBi Exposurecategory:Generalpopulation/uncontrolledenvironment EUTType:ProductionUnit DeviceType:PortableDevice 2.EvaluationmethodandLimit AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSAR testexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDB procedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulation exposureconditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition,listedbelow,issatisfied.Thesetest exclusionconditionsarebasedonsource-basedtime-averagedmaximumconductedoutputpower oftheRFchannelrequiringevaluation,adjustedfortune-uptolerance,andtheminimumtest separationdistancerequiredfortheexposureconditions.22Theminimumtestseparationdistance isdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresoroutersurfaceof thedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements,toany partofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbythe operatingconfigurationsandexposureconditionsofthetransmitterandapplicablehostplatform requirements,typicallyintheSARmeasurementorSARanalysisreport,accordingtotherequired publishedRFexposureKDBprocedures.WhennootherRFexposuretestingorreportingis required,astatementofjustificationandcompliancemustbeincludedintheequipmentapproval,in lieuoftheSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfiedbefore Page2of3FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity applyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-wayradios,handsets, laptops&tabletsetc.“ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingtof)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportablehost platformexposureconditions.ThegranteeisresponsiblefordocumentingthisaccordingtoClassI permissivechangerequirements.AntennasthatqualifyforstandaloneSARtestexclusionmust applytheestimatedstandaloneSARtodeterminesimultaneoustransmissiontestexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantennaconfiguration, adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is≤ 1.0. 3.ReferEvaluationMethod ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadio FrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevices RFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 4.ConductedPowerResults <BT> ModeChannel Frequency(MHz)PeakConductedOutputPower(dBm) GFSK 02402 -0.21 392441 0.79 782480 -0.23 π/4DQPSK 02402-0.24 392441 0.26 782480 -0.81 Page3of3FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity 5.ManufacturingTolerance <BT> GFSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)000 Tolerance±(dB)1.01.01.0 π/4DQPSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)000 Tolerance±(dB)1.01.01.0 6.EvaluationResults 6.1StandaloneEvaluation Band/Mode f (GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BT GFSK2.48051.0 1.2589 0.3965<3.0Yes π/4DQPSK2.48051.0 1.2589 0.3965<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)insection 4.1isappliedtodetermineSARtestexclusion. 6.2SimultaneousTransmissionforSARExclusion ThesamplesupportoneBTmodular.Noneedconsidersimultaneoustra…

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Aperuture UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450Specification DOCUMENT NO. SPECREV. P1 SPECIFICATIONS CUSTOMER: DESCRIPTION: CUSTOMERPARTNo: OURMODELNO: DATE:2020/12/22 PLEASERETRUVTOUSONECOPYOF“SPECIFICATIONFORAPPROVAL” WITYYOURAPPROVEDSIGNATURES Unipolar antenna Specification Unipolar antenna Specification Shenzhen Pengbanxingye Technology Co., Ltd 605, Building 4, 1970 Science and Technology Park, Minzhi Community, Minzhi Street, Longhua District, Shenzhen, China Shenzhen Pengbanxingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450Specification DOCUMENT NO. SPECREV. P1 APPLICATIONGUIDE 5.SPECIFICATIONS: No.ProductnumberPBX3216DA01 1CentralFrequency2440MHz 2Bandwidth100(Min.)MHz 3ReturnLoss-11.96(Max.)dB 4PeakGaindBi 5Impedance50Ω 6Operating Temperature -40~+85 °C 7MaximumPower5W 8Resistanceto solderingheat 10(@260°C) Sec. 9PolarizationLinear 10AzimuthBeamwidthOmni-directional 11TerminationSn(leadless) 0.8 Minzhi Street, Longhua District, Shenzhen, China 605, Building 4, 1970 Science and Technology Park, Minzhi Community, Shenzhen Pengbanxingye Technology Co., Ltd Shenzhen Pengbanxingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450Specification DOCUMENT NO. SPECREV. P1 6.ElectricalCharacteristics: Minzhi Street, Longhua District, Shenzhen, China 605, Building 4, 1970 Science and Technology Park, Minzhi Community, Shenzhen Pengbanxingye Technology Co., Ltd Shenzhen Pengbanxingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450Specification DOCUMENT NO. SPECREV. P1 X-YPlane X-YPlane X-YPlane Minzhi Street, Longhua District, Shenzhen, China 605, Building 4, 1970 Science and Technology Park, Minzhi Community, Shenzhen Pengbanxingye Technology Co., Ltd Shenzhen Pengbanxingye Technology Co., Ltd Shenzhen Pengbanxingye Technology Co., Ltd UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450Specification DOCUMENT NO. SPECREV. P1 3DRadiationPattern Minzhi Street, Longhua District, Shenzhen, China 605, Building 4, 1970 Science and Technology Park, Minzhi Community, Shenzhen Pengbanxingye Technology Co., Ltd

Page 1 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Appendix A RF Test Data for BT (Conducted Measurement) Product Name: Bluetooth Earbuds with charging case Test Model: BTO200 Environmental Conditions Temperature: 23.8C Relative Humidity: 52.1% ATM Pressure: 100.0 kPa Test Engineer: Jay Luo Supervised by: Nick Peng Page 2 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.1 -20dB Bandwidth Condition Mode Frequency (MHz) Antenna -20 dB Bandwidth (MHz) Limit -20 dB Bandwidth (MHz) Verdict NVNT 1-DH5 2402 Ant1 0.941 N/A Pass NVNT 1-DH5 2441 Ant1 0.952 N/A Pass NVNT 1-DH5 2480 Ant1 0.965 N/A Pass NVNT 2-DH5 2402 Ant1 1.283 N/A Pass NVNT 2-DH5 2441 Ant1 1.273 N/A Pass NVNT 2-DH5 2480 Ant1 1.286 N/A Pass Page 3 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs -20dB Bandwidth NVNT 1-DH5 2402MHz Ant1 -20dB Bandwidth NVNT 1-DH5 2441MHz Ant1 Page 4 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 1-DH5 2480MHz Ant1 -20dB Bandwidth NVNT 2-DH5 2402MHz Ant1 Page 5 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 2-DH5 2441MHz Ant1 -20dB Bandwidth NVNT 2-DH5 2480MHz Ant1 Page 6 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.2 Maximum Peak Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit (dBm) Verdict NVNT 1-DH5 2402 Ant1 -0.21 21 Pass NVNT 1-DH5 2441 Ant1 0.79 21 Pass NVNT 1-DH5 2480 Ant1 -0.23 21 Pass NVNT 2-DH5 2402 Ant1 -0.24 21 Pass NVNT 2-DH5 2441 Ant1 0.26 21 Pass NVNT 2-DH5 2480 Ant1 -0.81 21 Pass Page 7 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs Power NVNT 1-DH5 2402MHz Ant1 Power NVNT 1-DH5 2441MHz Ant1 Page 8 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT 1-DH5 2480MHz Ant1 Power NVNT 2-DH5 2402MHz Ant1 Page 9 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT 2-DH5 2441MHz Ant1 Power NVNT 2-DH5 2480MHz Ant1 Page 10 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.3 Carrier Frequencies Separation Condition Mode Antenna Hopping Freq1 (MHz) Hopping Freq2 (MHz) HFS (MHz) Limit (MHz) Verdict NVNT 1-DH5 Ant1 2402.012 2402.824 0.812 0.643 Pass NVNT 2-DH5 Ant1 2402.018 2403.012 0.994 0.857 Pass Page 11 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs CFS NVNT 1-DH5 2402MHz Ant1 CFS NVNT 2-DH5 2402MHz Ant1 Page 12 of 42 FCC ID: 2ACP4BTO200 Report No.: LCSA09094081EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.4 Dwell Time Condition Mode Frequency (MHz) Antenna Pulse Time (ms) Total Dwell Time (ms) Burst Count Period Time (ms) Lim…

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Page 1 of 37 FCCID:2ACP4BTO200ReportNo.:LCSA09094081EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCCTESTREPORT FOR SentryIndustrieslimited BluetoothEarbudswithchargingcase TestModel:BTO200 AdditionalModelNo.:PleaseRefertoPage6 Preparedfor:SentryIndustrieslimited Address: UNIT904,9/FCHINACHEMGOLDENPLAZA,77MODYROAD, TSIMSHATSUIEAST,KOWLOON,HONGKONG,China Preparedby:ShenzhenLCSComplianceTestingLaboratoryLtd. Address: 101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China Tel:(+86)755-82591330 Fax:(+86)755-82591332 Web:www.LCS-cert.com Mail:[email protected] Dateofreceiptoftestsample:September10,2024 Numberoftestedsamples:2 SampleNo. ： A240827016-1,A240827016-2 Serialnumber:Prototype DateofTest:September10,2024~September19,2024 DateofReport:September20,2024 Page 2 of 37 FCCID:2ACP4BTO200ReportNo.:LCSA09094081EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCCTESTREPORT FCCCFR47PART15C(15.247) ReportReferenceNo......................:LCSA09094081EA DateofIssue.......................................:September20,2024 TestingLaboratoryName..............:ShenzhenLCSComplianceTestingLaboratoryLtd. Address................................................: 101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China TestingLocation/Procedure............ : FullapplicationofHarmonisedstandards■ PartialapplicationofHarmonisedstandards□ Otherstandardtestingmethod□ Applicant’sName.............................: SentryIndustrieslimited Address................................................: UNIT904,9/FCHINACHEMGOLDENPLAZA,77MODYROAD, TSIMSHATSUIEAST,KOWLOON,HONGKONG,China TestSpecification Standard..............................................:FCCCFR47PART15C(15.247) TestReportFormNo.........................:TRF-4-E-148A/0 TRFOriginator....................................:ShenzhenLCSComplianceTestingLaboratoryLtd. MasterTRF.........................................:Dated2011-03 ShenzhenLCSComplianceTestingLaboratoryLtd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenLCSComplianceTestingLaboratoryLtd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenLCSComplianceTestingLaboratoryLtd.takesnoresponsibilityforandwillnot assumeliabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. TestItemDescription.....................: BluetoothEarbudswithchargingcase TradeMark..........................................: SENTRY TestModel...........................................: BTO200 Ratings................................................. : Input:DC5V Headset:DC3.7VbyLi-ionBattery(30mAh) Chargingcase:DC3.7VbyLi-ionBattery(180mAh) Result..................................................:Positive Compiledby:Supervisedby:Approvedby: LingZhu/AdministratorCaryLuo/TechniqueprincipalGavinLiang/Manager Page 3 of 37 FCCID:2ACP4BTO200ReportNo.:LCSA09094081EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCC--TESTREPORT TestResult Positive Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. TestReportNo.:LCSA09094081EA September20,2024 Dateofissue TestModel.............................. : BTO200 EUT......................................... : BluetoothEarbudswithchargingcase Applicant...............................:SentryIndustrieslimited Address...................................:UNIT904,9/FCHINACHEMGOLDENPLAZA,77MODY ROAD,TSIMSHATSUIEAST,KOWLOON,HONG KONG,China Telephone...............................:/ Fax..........................................:/ Manufacturer.........................:SentryIndustrieslimited Address...................................: UNIT904,9/FCHINACHEMGOLDENPLAZA,77MODY ROAD,TSIMSHATSUIEAST,KOWLOON,HONG KONG,China Telephone...............................: Fax..........................................: Factory...................................:SentryIndustrieslimited Address...................................:UNIT904,9/FCHINACHEMGOLDENPLAZA,77MODY ROAD,TSIMSHATSUIEAST,KOWLOON,HONG KONG,China Telephone...............................:/ Fax..........................................:/ Page 4 of 37 FCCID:2ACP4BTO200ReportNo.:LCSA09094081EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity RevisionHistory ReportVersionIssueDateRevisionContentRevisedBy 000September20,2024InitialIssue--- Page 5 of 37 FCCID:2ACP4BTO200ReportNo.:LCSA09094081EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TABLEOFCONTENTS DescriptionPage 1.GENERALINFORMATION...........................................................................................................6 1.1DescriptionofDevice(EUT).................................................................................................................6 1.2SupportequipmentList..........................................................................…

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Page1of2FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestSetupPhotosoftheEUT TestSetupPhoto(s)ofRadiatedEmissionsMeasurement Fig.1 Fig.2 Page2of2FCCID:2ACP4BTO200 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestSetupPhoto(s)ofConductedEmissionsMeasurement Fig.3