2BLDL-ZB01Earbuds

ZENSBUDS AI Product Manual | Testing Report Attachment Page 1 ZB01 Four-Language Product Manual Earbuds Field Details Product Earbuds Document Type Text manual for testing lab report attachment Language Coverage English / Español / 简体中文 / 日本語 Source File ZENSBUDS_AI_Manual_2605.docx Prepared Date May 28, 2026 Language Coverage Language Included Manual Content English Caution / Technical Specifications / Touch Controls / Two-Device Connection Español Precauciones / Especificaciones Técnicas / Controles Táctiles / Conexión a dos dispositivos 简体中文 注意事项 / 技术规格 / 触控操作 / 连接到两台设备 日本語 注意事項 / 技術仕様 / タッチ操作 / 2台のデバイスへの接続 ZENSBUDS AI Product Manual | Testing Report Attachment Page 2 English | EARBUDS Product Manual Product: EARBUDS | Bluetooth Name: EARBUDS Caution Do not disassemble or replace internal parts of the product, as this may cause damage and void the warranty. Avoid exposing the product to water, excessive heat, or strong electromagnetic fields. If the product is exposed to water, disconnect it immediately and let it dry completely before use. Do not dismantle the battery or expose it to high temperatures to prevent fire hazards. Use only the recommended charging cable and adapter. Store the earbuds in a cool, dry place, and avoid long-term high-volume listening to prevent hearing damage. Keep the product out of reach of children due to small parts that may pose a choking hazard. Technical Specifications Item Specification Bluetooth Version V6.0 Transmission Distance Up to 25 m (normal mode) / 5 m (translation mode) Bluetooth Profiles A2DP, AVRCP, HFP, AVDTP, AVCTP, GAVDP Audio Codecs AAC, SBC, MPEG-1/2/3 ANC Hybrid (FF + FB), 10 levels, up to -45 dB Call Noise Cancelling (ENC) Dual-mic ENC Microphones 6 total (3 per earbud, silicon MEMS) In-Ear Detection Optical sensor Spatial Audio Supported Output Power 5 mW + 5 mW Earbud Battery 50 mAh, 3.7 V each Charging Case Battery 400 mAh, 3.7 V Playtime >= 5 hours (single charge) Earbud Charging Time About 1.5 hours Case Charging Time About 1.5 hours Charging Input USB-C, 5 V Indicator Light Purple LED x 1 Bluetooth Name EARBUDS ZENSBUDS AI Product Manual | Testing Report Attachment Page 3 Touch Controls Action Gesture Power On Open the charging case automatically, or press and hold either earbud for 4-6 seconds. Power Off Place the earbuds in the case and close the lid, or press and hold either earbud for 4-6 seconds. Play / Pause Music Double tap either earbud. Next Song Triple tap the right earbud. Previous Song Triple tap the left earbud. Volume Up Single tap the right earbud. Volume Down Single tap the left earbud. Answer Call Double tap either earbud when a call is incoming. Hang Up Call Double tap either earbud during the call. Reject Call Press and hold either earbud for 2 seconds. Voice Assistant Press and hold the left earbud for 2 seconds. ANC Mode Switch Press and hold the right earbud for 2 seconds to cycle Normal -> ANC -> Transparency. Factory Reset Disconnect the earbuds, then quickly tap 5 times to clear pairing data. Auto Power Off Automatically turns off if not paired within 5 minutes. Low Battery Alert (Earbuds) Voice prompt when the earbuds are low. Low Battery Alert (Case) Case LED flashes when the case battery is low. Connecting EARBUDS to Two Devices First, connect the earbuds to Device A following the usual Bluetooth pairing process. Once connected successfully, turn off Bluetooth on Device A. Then connect the earbuds to Device B. After successfully connecting to Device B, turn Bluetooth back on for Device A. The earbuds will automatically reconnect to Device A while remaining connected to Device B, allowing you to switch seamlessly between the two devices. ZENSBUDS AI Product Manual | Testing Report Attachment Page 4 Español | Manual del Producto EARBUDS Producto: EARBUDS | Nombre Bluetooth: EARBUDS Precauciones No desarmes ni reemplaces las piezas internas del producto, ya que esto puede dañarlo y anular la garantía. Evita exponer el producto al agua, calor excesivo o campos electromagnéticos fuertes. Si el producto se moja, desconéctalo de inmediato y déjalo secar completamente antes de usarlo. No desarmes la batería ni la expongas a altas temperaturas para prevenir riesgos de incendio. Usa solo el cable y el adaptador de carga recomendados. Guarda los auriculares en un lugar fresco y seco, y evita escuchar a un volumen alto durante mucho tiempo para prevenir daños auditivos. Mantén el producto fuera del alcance de los niños debido a las piezas pequeñas que pueden causar asfixia. Especificaciones Técnicas Elemento Especificación Versión Bluetooth V6.0 Distancia de transmisión Hasta 25 m (modo normal) / 5 m (modo traducción) Perfiles Bluetooth A2DP, AVRCP, HFP, AVDTP, AVCTP, GAVDP Códecs de audio AAC, SBC, MPEG-1/2/3 ANC Híbrido (FF + FB), 10 niveles, hasta -45 dB Cancelación de ruido en llamadas (ENC) ENC de doble micrófono Micrófonos 6 en total (3 por auricular, MEMS de silicio) Detección en el oído Sensor óptico Audio espacial Compatible Potencia de salida 5 mW + 5 mW Batería de los auriculares 50 mAh, 3.7 V cada uno Batería del estuche de carga 400 mAh, 3.7 V Tiempo de reproducción >= 5 horas (una carga) Tiempo de carga de auriculares Aprox. 1.5 horas Tiempo de carga del estuche Aprox. 1.5 horas Entrada de carga USB-C, 5 V Indicador luminoso LED morado x 1 Nombre Bluetooth EARBUDS ZENSBUDS AI Product Manual | Testing Report Attachment Page 5 Controles Táctiles Acción Gesto Encender Abre el estuche de carga automáticamente, o mantén presionado cualquier auricular durante 4-6 segundos. Apagar Coloca los auriculares en el estuche y cierra la tapa, o mantén presionado cualquier auricular durante 4-6 segundos. Reproducir / pausar música Toca dos veces cualquier auricular. Siguiente canción Toca tres veces el auricular derecho. Canción anterior Toca tres veces el auricular izquierdo. Subir volumen Toca una vez el auricular derecho. Bajar volumen Toca una vez el auricular izquierdo. Responder llamada Toca dos veces cualq…

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TCBCALLpágina1 FileFCCID:2BLDL-ZB01 PleaseuploadanexhibitthatexplainshowdoestheTCBverifythenewagentinformation: 1-IstheaddressoftheagentavalidphysicalUSmailingaddress(notaUSpostofficebox,notavirtualmailbox,notP.O.Boxes,notavacantlot,notapublicbuilding, etc.) ○Wehavecheckediftheaddressexistsinarealandpotentialbuilding(Googlemaps)+officialUSregister,afterthisverificationandtheevidencebelowwecan guaranteethefollowing: notaUSpostofficebox notavirtualmailbox notP.O.Boxes notavacantlot notapublicbuilding(note) ►WecheckedtheFCCFRNSearchbasedontheinformationprovidedbythegrantee. Ontheofficialregisterfrom:Search|CaliforniaSecretaryofState TCBCALLpágina2 TCBCALLpágina3 TCBCALLpágina4 TCBCALLpágina5 TCBCALLpágina6 TCBCALLpágina7 TCBCALLpágina8 ►CONCLUSIONbyTCB:TheASOPdefinedandprovidedbygranteeisVALIDandconfirmed.Thereforetheexhibit"C5266091_X23_Ed1_US_Agent_Letter" includedinthefileisok. 2-IstheagentphysicallylocatedatthatvalidUSaddresssuchthattheagentcanbelegallyservedatthataddress? Yes,checkabove 3-Hasthelistedagentclearlyagreedinwritingtoserveastheagentforthegranteeatthataddress? Yes,itisincludedintheexhibit"C5266091_X23_Ed1_US_Agent_Letter" >

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:HerlandInternationalTradingInc FRN:0036324101 ContactName:JianfengGao Address:1370ValleyVistaDrSte200DiamondBarCalifornia91765-3921 TelephoneNo:001-909-772-1888 Email:[email protected] Applicant: Companyname:ZensbudsLimited ProductDescription:Earbuds Granteecode:2BLDL FCCID:2BLDL-ZB01 FRN:0035996941 ContactName:Jackbu Address:Room715,FabricoIndustrialBuilding,78-84KwaiCheongRoad,KwaiChung, HongKong TelephoneNo:18906679427 Email:[email protected] [ZensbudsLimited]certifiesthat,asofthedateofthisfilingoftheapplication withtheTCB,[HerlandInternationalTradingInc]isourdesignatedUSagent forserviceofprocessfortheabovereferencedFCCID.[ZensbudsLimited] acceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanycommission relatedproceedinginvolvingequipment.[HerlandInternationalTradingInc] accepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedUSagentforserviceofprocessfortheabovereferenceFCCID. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. Date:2026/08/03 Applicant’sName:JackbuUSAgent’sName:JianfengGao Title:ManagerTitle:Manager SignatureSignature

AttestationStatement. OldCode:C526609124NewCode:00015544Ed.3 Changereason:FRNisaddedtotheApplicantinformationsection. 1/1 ZensbudsLimited TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 TheCommissionadoptedrulesthatprohibitequipmentauthorizationfor“covered” telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentitiesidentified ontheCommission’sCoveredList 1 ,whichisperiodicallyupdated.SeetheCoveredListformore details.ThisAttestationStatementistoconfirmthatwefollowtheSection2.911(d)(5)(i)-(ii) Applicant Companyname:ZensbudsLimited Granteecode:2BLDL FCCID:2BLDL-ZB01 FRN:0035996941 ContactName:Jackbu Address:Room715,FabricoIndustrialBuilding,78-84KwaiCheongRoad,KwaiChung, HongKong TelephoneNo:18906679427 FaxNo:18906679427 Email:[email protected] i.[ZensbudsLimited](“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceiving anequipmentauthorizationpursuanttosection2.903oftheFCCrules.The applicantmustsignthiscertification. ii.[ZensbudsLimited](“theapplicant”)certifiesthat,asofthedateofthefiling oftheapplication,theapplicant[isnot](asaspecificallynamedentityorany ofitssubsidiariesoraffiliates)identifiedontheCoveredListasanentity producing“covered”equipment.Theapplicantmustsignthiscertification. [ZensbudsLimited](“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicant[isnot]identifiedontheCoveredListasanentity producing“covered”equipment. Date:2026/08/03 Applicant’sName:Jackbu Title:Manager Signature: 1 TheCommission’sCoveredListispublishedbythePublicSafetyandHomelandSecurityBureauandpostedonthe Commission’swebsite.ThisCoveredList,whichisperiodicallyupdated,identifiesparticularequipment,producedby particularentities,thatconstitutes“covered”equipment.https://www.fcc.gov/supplychain/coveredlist

ZensbudsLimited Code00018768Ed.1 Item1.Thedeviceisabletoinstallsoftware/programinstallation? ☐ Yes,gotoItem2. ☒ No.Inthiscase,therestoftheitemsdonotapply.ThedevicecannotsupportinstallationofKaspersky cybersecurityoranti-virussoftware. Item2.TechnicalRequirementsforKasperskyCybersecuritySoftware: #GeneralRequirements(ForallDevices)Yes/NoorN/AComments 1Internetconnectionforactivationandupdates(ForallOperating Systems) N/A DeviceEarbuds CompanynameZensbudsLimited Granteecode2BLDL FCCID2BLDL-ZB01 FRN0035996941 ContactnameJackbu AddressRoom715,FabricoIndustrialBuilding,78-84 KwaiCheongRoad,KwaiChung,HongKong Telephonenumber18906679427 [email protected] Chipset/moduleinformationBT8932H OperatingSystem(ifapplicable)N/A StorageCapacity(harddriveorother permanentmemorystorage,ifapplicable) N/A 2 #GeneralRequirements(ForWindowsDevices)Yes/NoorN/AComments 1Storage:1500MBfreespaceontheharddriveN/A 2OperatingSystem: MicrosoftWindows8,8.1,10&11Home/Pro/Enterprise Microsoft Windows7Starter/HomeBasic&Premium/Professional/ UltimateSP1orhigher N/A 3Processor:1GHzorhigher(x86orx64)N/A 4Memory(RAM)1GB(32-bit)or2GB(64-bit)N/A 5ScreenResolution:Minimumresolutionof1024x768N/A #GeneralRequirements(FormacOSdevices)Yes/NoorN/AComments 1OperatingSystemmacOS®13–14N/A 2Memory(RAM)4GBN/A 3Storage:3455MBfreespaceontheharddriveN/A #GeneralRequirements(ForAndroidDevices)Yes/NoorN/AComments 1Storage:150MBfreespaceN/A 2OperatingSystem:Android™10–14N/A 3ScreenResolution:Minimumresolutionof320x480N/A #GeneralRequirements(foriOSdevices)Yes/NoorN/AComments 1Storage:150MBfreespaceN/A 2OperatingSystem:iOS®17N/A #GeneralRequirements(ForLinuxsystem)Yes/NoorN/AComments 3 1Harddrive:1GBoffreespaceN/A 2CPU:IntelPentium1GHzorhigherN/A 3RAM:1GBN/A 4Minimumsoftwarerequirements: AlmaLinuxOS8orlater; AlterOS7.5orlater; AstraLinuxCommonEdition2.12orlater; CentOS6.7orlater; DebianGNU/Linux10.0orlater; EulerOS2.0orlater; OracleLinux7.3orlater; RedHatEnterpriseLinux6.7orlater; RockyLinux8.5orlater; SUSELinuxEnterpriseServer12.5orlater; Ubuntu12.04orlater; UncomOSHome/Business/Education/Enterprise2.2orlater; ALTLinuxWorkstaton/WorkstationK/Server/Education8or later; ROSALinuxWorkstation/Server12orlater; REDOS7.3andlater; N/A Afterreviewedthetechnicalrequirements,isthedevicecapableofsupportingtheinstallationof Kasperskysoftware? ☐ Yes,gotoItem3. ☒No.Inthiscase,therestoftheitemsdonotapply.ThedevicecannotsupportinstallationofKaspersky software Item3.ConnectivityCapabilities: 4 #PhysicalInterfacePurposeJustification 1 1 #WirelessInterfacePurposeJustification 1 1 Afterthereviewofthisitems,thedevice: ☒Cannotsupportinstallationofanycybersecurityoranti-virussoftwareonthecoveredlist. ☐ Potentiallycanoperatewithanycybersecurityoranti-virussoftwareonthecoveredlist–additionalthird- partyproofisprovidedtodemonstratecompliancewithrequirementsasof2.911(d)5(i),(ii)–“Proofof CompliancewithCoveredListSoftwareRequirements”ofthisdocumentapplies Signature:Name:Jackbu Date:2026-08-03 1 Thejustificationfieldisusedtojustifywhythesoftwarecannotbereceivedthroughthatinterface.Checktheannexformore indications.

Zensbuds Limited FCC ID: 2BLDL-ZB01 Product Similarity Declaration Applicant: Zensbuds Limited Address: Room 715, Fabrico Industrial Building, 78-84 Kwai Cheong Road, Kwai Chung, Hong Kong Manufacturer: Dongguan Ouge Electronic Technology Co.Ltd Address: Building 2, No.1 Dongshan Yongchang Road, Qishi Town, Dongguan City, Guangdong Province, China Product Name: Earbuds Trade Mark: ZENS Model Number: ZB01, ZB01-XX, ZENSBUDS AI, EB-01 We (Zensbuds Limited) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), The PCB layouts of the left and right headphones are different, All models are the same as the samples except for the model name and appearance color. Both the left and right headphones have undergone pre-tests, and the report only presents the worst test result of the right headphone. <Signature>: Name: Jack bu Title: Manager Company: Zensbuds Limited

C5266091_X10_Ed.2 1/1 ZensbudsLimited OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2026.08.03 Subject:RequestforConfidentiality FCCID:2BLDL-ZB01 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☐ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☐ User’sManual ☐ NOTE 1 ☐ InternalPhotos ☐ NOTE 1 ☐ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodof______daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, C5266091_X10_Ed.2 1/1 Signature: Name:Jackbu Title:Manager 2026.08.03

C5266091_X8_Ed.1 1/1 LetterofAuthorization ZensbudsLimited Company:ZensbudsLimited Address:Room715,FabricoIndustrialBuilding,78-84KwaiCheong Road,KwaiChung,HongKong ProductName:Earbuds ModelNumber:ZB01,ZB01-XX,ZENSBUDSAI,EB-01 FCCIdentifier:2BLDL-ZB01 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:JackbuDate:2026.08.03 Title:Manager Signatureofapplicant:

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(External Photos) Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※

Size: 12*10mm Model.: ZB01 FCC ID: 2BLDL-ZB01 Label location

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(Internal Photos) Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※ ANT ANT

FCC ID: 2BLDL-ZB01 RF Exposure Evaluation According to KDB 447498 D01 V06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, Mw) / (min. test separation distance, mm)] · [√f (GHz) ] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR, where f (GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest Mw and mm before calculation The result is rounded to one decimal place for comparison EIRP=E Meas +20log(d Meas )-104.7 EIRP is the equivalent isotropically radiated power, in dBm E Meas is the field strength of the emission at the measurement distance, in dBμV/m d Meas is the measurement distance, in m Here, BT Conducted power (dBm) Max tune-up (Mw) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 5.593 3.6 2480 5 1.14 3.0 BLE Conducted power (dBm) Max tune-up (Mw) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 2.49 1.77 2402 5 0.55 3.0 So a SAR test is not required

Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260415045R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 35 FCC Part 15C Test Report FCC ID: 2BLDL-ZB01 Applicant: Zensbuds Limited Address: Room 715, Fabrico Industrial Building, 78-84 Kwai Cheong Road, Kwai Chung, Hong Kong Manufacturer: Dongguan Ouge Electronic Technology Co.Ltd Address: Building 2, No.1 Dongshan Yongchang Road, Qishi Town, Dongguan City, Guangdong Province, China Product Name: Earbuds Trade Mark: ZENS Model Number: ZB01, ZB01-XX, ZENSBUDS AI, EB-01 Date of Receipt: Apr. 15, 2026 Test Date: Apr. 15, 2026 - Apr. 29, 2026 Date of Report: Apr. 29, 2026 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China Applicable Standards: FCC PART 15 C 15.247 ANSI C63.10-2020 + Cor.1-2023+C63.10a-2024 + Errata to C63.10a-2024 Test Result: Pass Report Number: DLE-260415045R Prepared (Test Engineer): Alisa Song Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260415045R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 35 Table of Contents Page 1. . SUMMARY OF TEST RESULTS 4 1.1. MEASUREMENT UNCERTAINTY 4 2. . GENERAL INFORMATION 5 2.1. GENERAL DESCRIPTION OF EUT 5 2.2. DESCRIPTION OF TEST MODES 6 2.3. BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.4. DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.5. TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 7 2.6. EQUIPMENTS LIST FOR ALL TEST ITEMS 8 3. . EMC EMISSION TEST 9 3.1. CONDUCTED EMISSION MEASUREMENT 9 3.1.1. POWER LINE CONDUCTED EMISSION LIMITS 9 3.1.2. TEST PROCEDURE 9 3.1.3. DEVIATION FROM TEST STANDARD 9 3.1.4. TEST SETUP 10 3.1.5. EUT OPERATING CONDITIONS 10 3.1.6. TEST RESULTS 11 3.2. RADIATED EMISSION MEASUREMENT 13 3.2.1. RADIATED EMISSION LIMITS 13 3.2.2. TEST PROCEDURE 14 3.2.3. DEVIATION FROM TEST STANDARD 14 3.2.4. TEST SETUP 14 3.2.5. EUT OPERATING CONDITIONS 15 3.2.6. TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 16 3.2.7. TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 17 3.2.8. TEST RESULTS (1GHZ~25GHZ) 19 3.3 RADIATED BAND EMISSION MEASUREMENT 20 3.3.1 TEST REQUIREMENT: 20 3.3.2 TEST PROCEDURE 20 3.3.3 DEVIATION FROM TEST STANDARD 20 3.3.4 TEST SETUP 21 3.3.5 EUT OPERATING CONDITIONS 21 3.4 CONDUCTED BAND EDGE EMISSION&CONDUCTED SPURIOUS EMISSIONS MEASUREMENT 23 3.4.1 APPLICABLE STANDARD 23 3.4.2 TEST PROCEDURE 23 3.4.3 DEVIATION FROM STANDARD 23 3.4.4 TEST SETUP 23 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260415045R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 35 Table of Contents Page 3.4.5 EUT OPERATION CONDITIONS 23 3.4.6 TEST RESULTS 23 4. . PEAK OUTPUT POWER 26 4.1. APPLIED PROCEDURES / LIMIT 26 4.1.1. TEST PROCEDURE 26 4.1.2. DEVIATION FROM STANDARD 26 4.1.3. TEST SETUP 26 4.1.4. EUT OPERATION CONDITIONS 26 4.1.5. TEST RESULTS 27 5. . POWER SPECTRAL DENSITY TEST 29 5.1. APPLIED PROCEDURES / LIMIT 29 5.1.1. TEST PROCEDURE 29 5.1.2. DEVIATION FROM STANDARD 29 5.1.3. TEST SETUP 29 5.1.4. EUT OPERATION CONDITIONS 29 5.1.5. TEST RESULTS 29 6. . 6DB BANDWIDTH TEST 31 6.1. APPLIED PROCEDURES / LIMIT 31 6.1.1. TEST PROCEDURE 31 6.1.2. DEVIATION FROM STANDARD 31 6.1.3. TEST SETUP 31 6.1.4. EUT OPERATION CONDITIONS 31 6.1.5. TEST RESULTS 31 7. . ANTENNA REQUIREMENT 35 7.1. STANDARD REQUIREMENT 35 7.2. EUT ANTENNA 35 8. . TEST SEUUP PHOTO 35 9. . EUT PHOTO 35 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260415045R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 35 1.. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.205, 15.209, 15.247(d) Radiated Spurious Emission PASS 15.209, 15.205 Band Edge Emission PASS 15.247(b) Peak Output Power PASS 15.247(a)(2) 6dB Bandwidth PASS 15.247(e) Power Spectral Density PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Test lab: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China FCC Test Firm Registration Number: 854456 Designation Number: CN1307 IC Registered No.: 27485 CAB ID.: CN0118 1.1. MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% 8 6dB Bandwidth ±0.2MHz 9 Power Spectral Density ±0.3dBm Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260415045R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 35 2.. GENERAL INFORMATION 2.1. GENERAL DESCRIPTION OF EUT Product Name: Earbuds Trade Mark: ZENS Model Number: ZB01, ZB01-XX, ZENSBUDS AI, EB-01 Test Model: ZB01 Model Difference: All models are same as the samples except model name and appearance color, they have the same structure and circuit. Operation Frequency: 2402~2480MHz Channel numbers: 40 Channels Channel separation: 2MHz Data Rate: 1Mbps Modulation technology: GFSK Antenna Type: Internal Antenna Antenna gain: 2.78 dBi Power supply: DC 5V …

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PengBanXingYeShenZhenTechnologyCo.,Ltd Address：Room608,Building4,1970ScienceandTechnologyTown,MinzhiStreet,LonghuaDistrict,Shenzhen. UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± PengBanXingYeShenZhenTechnologyCo.,Ltd SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 1 SPECIFICATIONS CUSTOMER: DESCRIPTION: GeomagneticAntenna CUSTOMERPARTNO: OURMODELNO: PBX1608MA06 DATE: PLEASERETURNTOUSONECOPYOF“SPECIFICATIONFORAPPROVAL” WITHYOURAPPROVEDSIGNATURES ApprovedLiuFeiAuditLiuFeiMakingLiuXiaoMei CustomerAcknowledgesSignature Date PengBanXingYeShenZhenTechnologyCo.,Ltd Address：Room608,Building4,1970ScienceandTechnologyTown,MinzhiStreet,LonghuaDistrict,Shenzhen. UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± PengBanXingYeShenZhenTechnologyCo.,Ltd SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 2 PBX1608MA06Specification OperatingTemp.:-40°C~+85°C 1.FEATURES: ●Lightweight,compact ●Widebandwidth,lowcost ●Built-inantennawithhighgain 2.APPLICATIONS: ●Bluetooth,WirelessLAN,MobileTV ●HomeRFSystem,etc 3.PRODUCTIDENTIFICATION (1)(2)(3) (1)Producttype:MultilayerchipAntenna (2)CenterFrequency:2450MHz (3)ExternalDimensions(L×W)(mm):1.6*0.8 4.SHAPEANDDIMENSIONS: LWHA 1.60 ± 0.200.80 ± 0.20 0.80±0.200.30±0.10 CH IP45 016 2 08 PengBanXingYeShenZhenTechnologyCo.,Ltd Address：Room608,Building4,1970ScienceandTechnologyTown,MinzhiStreet,LonghuaDistrict,Shenzhen. UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± PengBanXingYeShenZhenTechnologyCo.,Ltd SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 3 ●AntennaislocatedinthePCBboardorthemiddleposition(long-barheadphones):(units:mm) Theantennaisoptimallyplacedinthemiddlearea,andatleastonerowofthroughholes aroundtheclearanceareaisoptimallyrequired. ●WhentheantennaislocatedattheedgeofthePCBboard(in-earheadphonesandsome long-barheadphones): Theantennaisoptimallyplaced ontheedgeofthePCBA;theantennaand itsalignmentaresetonasinglelayer. Designcriteria:： 1.Thedimensionsinthediagramareforreferenceonly;theactualdimensionsareoptimizedfor differentversions. 2.Theoptimumclearanceareaaroundtheneedforatleastarowofholes,aperture0.3mm,and otherPCBAcircuitormaterialisolation. PengBanXingYeShenZhenTechnologyCo.,Ltd Address：Room608,Building4,1970ScienceandTechnologyTown,MinzhiStreet,LonghuaDistrict,Shenzhen. UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± PengBanXingYeShenZhenTechnologyCo.,Ltd SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 4 AntennaPackageScheme1（3.5mm×7.5mm） PengBanXingYeShenZhenTechnologyCo.,Ltd Address：Room608,Building4,1970ScienceandTechnologyTown,MinzhiStreet,LonghuaDistrict,Shenzhen. UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± PengBanXingYeShenZhenTechnologyCo.,Ltd SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 5 AntennaPackageSchemeII（4.5mm×6mm） PengBanXingYeShenZhenTechnologyCo.,Ltd Address：Room608,Building4,1970ScienceandTechnologyTown,MinzhiStreet,LonghuaDistrict,Shenzhen. UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± PengBanXingYeShenZhenTechnologyCo.,Ltd SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:S…

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