2BQB2-INDEX01Ring

Quick Start Guide Guide de démarrage rapide Guía de inicio rápido Getting Started Pour commencer Configuración inicial Follow these steps to set up your Index: Suivez les étapes suivantes pour configurer votre bague Index : Siga estos pasos para configurar su Index. 1 Visit repebble.com/app from your smartphone and download the "Pebble" app. Se rendre sur le site repebble.com/app à partir du smartphone, et télécharger l'application « Pebble ». Diríjase a la página repebble.com/app desde su smartphone y descargue la aplicación « Pebble ». 2 Choose your ring size. Try the included sizing kit to find your best fit (sizes 6–13). Choisissez votre taille de bague. Essayez le kit de taille inclus pour trouver le meilleur ajustement (tailles 6–13). Elija su talla de anillo. Pruebe el kit de tallas incluido para encontrar el mejor ajuste (tallas 6–13). 3 Put on your Index. The ring is always on — no charging required. Mettez votre Index. La bague est toujours allumée — aucune charge nécessaire. Póngase su Index. El anillo está siempre encendido — no requiere carga. 4 Pair your Index to your smartphone via Bluetooth. Couplez votre Index à votre smartphone via Bluetooth. Conecte su Index a su smartphone mediante Bluetooth. 5 Follow the instructions on your smartphone app to complete setup and start using your Index. Suivez les instructions de l'application smartphone pour terminer la configuration et commencer à utiliser votre Index. Siga las instrucciones de la aplicación de su smartphone para completar la configuración y empezar a utilizar su Index. QR.REPEBBLE.COM operating temperature: -20–60 °C About Index À propos de Index Acerca de Index Your Index is powered by non- rechargeable silver oxide cells that last approximately two years under average use. No charging required. Votre Index est alimentée par des piles à oxyde d'argent non rechargeables qui durent environ deux ans en utilisation normale. Aucune charge nécessaire. Su Index funciona con pilas de óxido de plata no recargables que duran aproximadamente dos años con uso normal. No requiere carga. Your Index is made from 316 stainless steel and is water resistant for hand washing and showering. Votre Index est fabriquée en acier inoxydable 316 et résiste à l'eau pour le lavage des mains et la douche. Su Index está fabricado en acero inoxidable 316 y es resistente al agua para el lavado de manos y la ducha. Learn more about your Index at www.repebble.com Pour en savoir plus sur votre Index, consultez le site www.repebble.com Obtenga más información sobre su Index en www.repebble.com Clean with a soft, moistened cloth. If necessary, use isopropyl alcohol or mild detergent to clean. La nettoyer avec un chiffon doux et humide. Si nécessaire, utilisez de l'alcool isopropylique ou un détergent doux pour la nettoyer. Limpiar con un paño suave y húmedo. Si fuera necesario, añada alcohol isopropílico o un detergente suave para limpiar. Button gestures: Press & hold — record a voice note (up to 5 min) Single press — customizable action Double press — customizable action Gestes du bouton : Appui long — enregistrer une note vocale (jusqu'à 5 min) Appui simple — action personnalisable Double appui — action personnalisable Gestos del botón: Mantener pulsado — grabar una nota de voz (hasta 5 min) Pulsación simple — acción personalizable Doble pulsación — acción personalizable Industry Canada Compliance Statement Déclaration de conformité d'Industrie Canada This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Pebble Index 01 — Product Manual FCC Compliance Statement Federal Communications Commission — Part 15 NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Modifications Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Operation Conditions This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC RF Exposure Warning Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment . This equipment can be used in portable exposure conditions.

CoreDevicesLLC 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:CoreDevicesLLC Address: 2261MarketStreetSTE22843SanFranciscoCAUnitedStates94114 ProductName:Ring FCCID:2BQB2-INDEX01 Model(s):PebbleINDEX01 2.911(d)(5)(i)EquipmentType We,[ CoreDevicesLLC ](“theapplicant”)certifythattheequipmentforwhichauthorizationissought throughcertificationisnot:  Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules.  Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:EricMigicovskyDate:2026-04-26 TitleandCompanyname:Manager NOTE1 “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

CoreDevicesLLC 2.911(d)(5)(ii)ApplicantAttestationv1.2 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:CoreDevicesLLC Address: 2261MarketStreetSTE22843SanFranciscoCAUnitedStates94114 ProductName:Ring FCCID:2BQB2-INDEX01 Model(s):PebbleINDEX01 2.911(d)(5)(ii)Applicantfiling We,[CoreDevicesLLC](“theapplicant”)certifythat,asofthedateofthefilingoftheapplication, theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,establishedpursuantto §1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:EricMigicovskyDate:2026-04-26 TitleandCompanyname:Manager 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

CoreDevicesLLC 2.911(d)(7)USAAgentv1.2 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:CoreDevicesLLC Address: 2261MarketStreetSTE22843SanFranciscoCAUnitedStates94114 ProductName:Ring FCCID:2BQB2-INDEX01 Model(s):PebbleINDEX01 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[CoreDevicesLLC](“theapplicant”)designate[CoreDevicesLLC] NOTE1 forthepurposeofaccepting serviceofprocessonbehalfoftheapplicant. Applicantconsent:WeAcknowledgeourconsenttoacceptserviceofprocessintheUnitedStates formattersrelatedtotheapplicableequipment,andatthephysicalU.S.addressandemailaddress ofthedesignatedagentandacknowledgeouracceptanceofourobligationtomaintainanagentfor serviceofprocessintheUnitedStatesfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,or theconclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingthe equipment,whicheverislater. Agentobligation:WeAcknowledgeourobligationtoacceptserviceofprocessintheUnitedStates formattersrelatedtotheapplicableequipmentatourphysicalU.S.addressandemailaddressforno lessthanoneyearaftereitherthegranteehaspermanentlyterminatedallmarketingandimportation oftheapplicableequipmentwithintheU.S.,ortheconclusionofanyCommission-related administrativeorjudicialproceedinginvolvingtheequipment,whicheverislater. USAAgent Companyname:CoreDevicesLLC Address:2261MarketStreetSTE22843San FranciscoCAUnitedStates94114 FRN:0037172152 ContactName:EricMigicovsky TelephoneNo:5856483187 Email:[email protected] Applicant Companyname:CoreDevicesLLC Address:2261MarketStreetSTE22843San FranciscoCAUnitedStates94114 FRN:0037172152 FCCGranteeCode: 2BQB2 ContactName:EricMigicovsky TelephoneNo:5856483187 Email:[email protected] CoreDevicesLLC 2.911(d)(7)USAAgentv1.2 Signature: Title:Manager Signature: Title:Manager Date:2026-04-26Date:2026-04-26 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threat s-to-the-communications-supply-chain-through-the

DifferencesDeclaration Towhomconcern, WecompanyCoreDevicesLLC Herebydeclares: Theproductmodel(s)PIX01BLK#13,PIX01BLK#12,PIX01BLK#11, PIX01BLK#10,PIX01BLK#9,PIX01BLK#8,PIX01BLK#7,PIX01Gold #13,PIX01Gold#12,PIX01Gold#11,PIX01Gold#10,PIX01Gold#9, PIX01Gold#8,PIX01Gold#7,PIX01Gold#6.PIX01SV#13,PIX01SV #12,PIX01SV#11,PIX01SV#10,PIX01SV#9,PIX01SV#8,PIX01SV #7.areidenticalinthePCBlayout,electronicschematicandantenna withPebbleINDEX01,onlydifferentinsizeandcolor. Sincerelyyours, Name:EricMigicovsky Title:Manager

CoreDevicesLLC OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2026-04-26 Subject;RequestforLongTermConfidentiality FCCID:2BQB2-INDEX01 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,weare requestingtheCommissiontowithholdthefollowingattachment(s)asconfidentialdocumentsfrom publicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredasproprietary informationinoperationoftheequipment.Thepublicdisclosureofthesedocumentsmightbeharmfulto ourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatandcorrespondenceduring thecertificationreviewprocesscannotbegrantedasconfidentialdocumentsandthisinformationwillbe availableforpublicreviewoncethegrantofequipmentauthorizationisissued. Sincerely, Signature: Name:EricMigicovsky Title:Manager

LetterofAuthorization Company:CoreDevicesLLC Address:2261MarketStreetSTE22843SanFranciscoCAUnitedStates94114 ProductName:Ring ModelNumber:PebbleINDEX01 FCCIdentifier:2BQB2-INDEX01 WeauthorizeMiCOMLabsInc,575BoulderCourt,Pleasanton,California94566,USA,toactonour behalfonallmattersconcerningtheabovenamedequipment. AnyindividualwithinMiCOMLabsisauthorizedtoactonourbehalfandtakeactionontheapplication. WedeclarethatMiCOMLabsInc,575BoulderCourt,Pleasanton,California94566,USA,isallowedto forwardallinformationrelatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.AnyandallactscarriedoutbyMiCOMLabs onourbehalfshallhavethesameeffectasactsofourown. Name:EricMigicovskyDate:2026-04-26 Title:Manager

FCCID:2BQB2-INDEX01ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page1of3 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 AppendixIIExternalPhotos FCCID:2BQB2-INDEX01ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page2of3 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 FCCID:2BQB2-INDEX01ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page3of3 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00

FCCIDLabelLocation

FCCID:2BQB2-INDEX01ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page1of2 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 AppendixIIIInternalPhotos Battery FCCID:2BQB2-INDEX01ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page2of2 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 BTANT

TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page1of9 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen,Guangdon g,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 HealthTestReport For Applicantname: CoreDevicesLLC Address: 2261MarketStreetSTE22843SanFranciscoCAUnitedStates 94114 EUTname: Ring Brandname: Pebble Modelnumber: PebbleINDEX01 Seriesmodelnumber: N/A FCCID: 2BQB2-INDEX01 IssuedBy Companyname: BTFTestingLab(Shenzhen)Co.,Ltd. Address: Plant101,201and301,Building1,Block2,TantouIndustrialPark, TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Reportnumber: BTF260320R00502 Teststandards: 47CFRPart2SubpartJSection2.1093 Testconclusion: Pass Dateofsamplereceipt: 2026-03-20 Testdate: 2026-03-20to2026-03-26 Dateofissue: 2026-04-23 Preparedby: Approvedby: ChrisLiu/Project engineer Ryan.CJ/EMCmanager Note:Allthetestresultsinthisreportonlyrelatedtothetestingsamples.Whichcanbeduplicatedcompletelyforthelegalusewithapprovalof applicant;itshallnotbereproducedexceptinfullwithoutthewrittenapprovalofBTFTestingLab(Shenzhen)Co.,Ltd.,Alltheobjectionsshouldbe raisedwithinthirtydaysfromthedateofissue.Tovalidatethereport,youcancontactus. ReportNumber:BTF260320R00502 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page2of9 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen,Guangdon g,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 RevisionHistory VersionIssuedateRevisionscontent R_V02026-04-23Original ReportNumber:BTF260320R00502 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page3of9 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen,Guangdon g,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 TableofContents 1Introduction...............................................................................................................................................................4 1.1LaboratoryLocation..........................................................................................................................................4 1.2LaboratoryFacility............................................................................................................................................4 1.3Announcement..................................................................................................................................................4 2ProductInformation..................................................................................................................................................5 2.1ApplicationInformation.....................................................................................................................................5 2.2ManufacturerInformation.................................................................................................................................5 2.3FactoryInformation...........................................................................................................................................5 2.4GeneralDescriptionofEquipmentunderTest(EUT)......................................................................................5 2.5TechnicalInformation.......................................................................................................................................5 3RFOutputPower.......................................................................................................................................................6 4AppliedReferenceDocuments................................................................................................................................7 5RFExposureLimit....................................................................................................................................................7 6RFExposureAssessment........................................................................................................................................8 ReportNumber:BTF260320R00502 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page4of9 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen,Guangdon g,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 1Introduction 1.1LaboratoryLocation Testlocation:BTFTestingLab(Shenzhen)Co.,Ltd. Address: Plant101,201and301,Building1,Block2,TantouIndustrialPark,Tantou Community,SonggangStreet,Bao'anDistrict,Shenzhen,Guangdong,China Description: AllmeasurementfacilitiesusedtocollectthemeasurementdataarelocatedatPlant 101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity, SonggangStreet,Bao'anDistrict,Shenzhen,Guangdong,China Phonenumber:+86-0755-23146130 Faxnumber:+86-0755-23146130 1.2LaboratoryFacility Thetestfacilityisrecognized,certified,oraccreditedbythefollowingorganizations: FCC-DesignationNo.:CN1409 BTFTestingLab(Shenzhen)Co.,Ltd.hasbeenaccreditedasatestinglaboratorybyFCC(Federal CommunicationsCommission).ThetestfirmRegistrationNo.is695374. CNAS-RegistrationNo.:CNASL17568 BTFTestingLab(Shenzhen)Co.,Ltd.isaccreditedtoISO/IEC17025:2017GeneralRequirementsfor theCompetenceofTestingandCalibrationlaboratoriesforthecompetenceoftesting.TheRegistration No.isCNASL17568. A2LA-RegistrationNo.:6660.01 BTFTestingLab(Shenzhen)Co.,Ltd.isaccreditedinaccordancewiththerecognizedInternational StandardISO/IEC17025:2017Generalrequirementsforthecompetenceoftestingandcalibration laboratories. 1.3Announcement (1)Thetestreportreferencetotherepor…

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Element Value E1(0201)3.3pF E2(0201)0Ω E3(0201)N/A 10# 手模 10# 频点 效率dB 增益dBi 效率% 2400 -13.19 -6.27 4.80 2410 -13.11 -6.22 4.89 2420 -13.12 -6.34 4.87 2430 -13.28 -6.56 4.70 2440 -13.39 -6.70 4.58 2450 -13.60 -6.93 4.36 2460 -13.81 -7.13 4.16 2470 -14.06 -7.53 3.92 2480 -14.40 -7.88 3.63 平均值 -13.55 -6.844.43 PA Antenna E3 E2 E1 暗室测试坐标轴示意图（手 Z+ Y+ X

ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page1of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 Appendix-BT 1.Bandwidth 1.1TestResult 1.1.1OBW Mode TX Type Frequency (MHz) Packet Type ANT 99%OccupiedBandwidth(MHz) Verdict ResultLimit GFSKSISO 2402DH510.875/Pass 2441DH510.889/Pass 2480DH510.891/Pass Pi/4DQPSKSISO 24022DH511.178/Pass 24412DH511.183/Pass 24802DH511.185/Pass 8DPSKSISO 24023DH511.174/Pass 24413DH511.167/Pass 24803DH511.171/Pass 1.1.220dBBW Mode TX Type Frequency (MHz) Packet Type ANT 20dBBandwidth(MHz) Verdict ResultLimit GFSKSISO 2402DH510.960/Pass 2441DH511.005/Pass 2480DH511.014/Pass Pi/4DQPSKSISO 24022DH511.316/Pass 24412DH511.322/Pass 24802DH511.322/Pass 8DPSKSISO 24023DH511.283/Pass 24413DH511.276/Pass 24803DH511.312/Pass ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page2of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 1.2TestGraph 1.2.1OBW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page3of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page4of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page5of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page6of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page7of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 1.2.220dBBW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page8of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page9of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page10of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page11of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page12of67 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-755-23146130http://www.btf-lab.comVersion:1/00 2.MaximumConductedOutputPower 2.1TestResult 2.1.1Power Mode TX Type Frequency (MHz) Packet Type MaximumPeakConductedOutputPower(dBm) Verdict ANT1Limit GFSKSISO 2402DH50.51<=20.97Pass 2441DH51.09<=20.97Pass 2480DH51.16<=20.97Pass Pi/4DQPSKSISO 24022DH51.28<=20.97Pass 24412DH51.84<=20.97Pass 24802DH51.87<=20.97Pass 8DPSKSISO 24023DH51.40<=20.97Pass 24413DH52.…

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TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page1of34 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-0755-23146130http://www.btf-lab.comVersion:1/00 RFTestReport For Applicantname:CoreDevicesLLC Address: 2261MarketStreetSTE22843SanFranciscoCAUnitedStates 94114 EUTname:Ring Brandname:Pebble Modelnumber:PebbleINDEX01 Seriesmodelnumber:N/A FCCID:2BQB2-INDEX01 IssuedBy Companyname:BTFTestingLab(Shenzhen)Co.,Ltd. Address: Plant101,201and301,Building1,Block2,TantouIndustrialPark, TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Reportnumber:BTF260320R00501 Teststandards:47CFRPart15.247 Testconclusion:Pass Dateofsamplereceipt:2026-03-20 Testdate:2026-03-20to2026-03-26 Dateofissue:2026-04-23 Preparedby:Approvedby: ChrisLiu/Project engineer Ryan.CJ/EMCManager Note:Allthetestresultsinthisreportonlyrelatedtothetestingsamples.Whichcanbeduplicatedcompletelyforthelegalusewithapprovalof applicant;itshallnotbereproducedexceptinfullwithoutthewrittenapprovalofBTFTestingLab(Shenzhen)Co.,Ltd.,Alltheobjectionsshouldbe raisedwithinthirtydaysfromthedateofissue.Tovalidatethereport,youcancontactus. ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page2of34 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-0755-23146130http://www.btf-lab.comVersion:1/00 RevisionHistory VersionIssueDateRevisionsContent R_V02026-04-23Original Note: Oncetherevisionhasbeenmade,thenpreviousversionsreportsareinvalid. ReportNumber:BTF260320R00501 TotalorpartialreproductionofthisdocumentwithoutpermissionoftheLaboratoryisnotallowed.Page3of34 BTFTestingLab(Shenzhen)Co.,Ltd. Plant101,201and301,Building1,Block2,TantouIndustrialPark,TantouCommunity,SonggangStreet,Bao'anDistrict,Shenzhen, Guangdong,China Email:[email protected]:+86-0755-23146130http://www.btf-lab.comVersion:1/00 TableofContents 1Introduction.........................................................................................................................................................4 1.1LaboratoryLocation....................................................................................................................................4 1.2LaboratoryFacility......................................................................................................................................4 1.3Announcement............................................................................................................................................4 2ProductInformation............................................................................................................................................5 2.1Appl…

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