2BXTF-853-QB853 Bluetooth keyboard

Wireless Keyboard User Manual US Thank you for choosing our product, please kindly read this manual carefully before use. 1. Bluetooth Version: BT5.0 2. Bluetooth Distance: 32.8ft / 10m 3. Modulation System: GFSK 4. Operating Voltage: 3.0–4.2V5 5. Working Current: (No Backlight) <50mA 6. Standby Current: <5mA 7. Working Current: (Backlight) <120mA 8. Sleeping Current: <0.1mA 9. Charging Current: ≈250mA 10. Standby Time: >90 days 11. Charging Time: ≈2.5 hours 12. Battery Capacity: 500mAh 13. Lithium Battery Life: >1 years 14. Working Time: (Backlight) <4 hours 15. Touch Strength: 120±30g 16. Key Strength: 80±10g 17. Key Life: ≥3 Million times 18. Operating Temperature: -10°C ~+55°C IOS: Control+Space Fn+Control: Show/Hide Virtual Keyboard(IOS system only) Note: Before using the keyboard, please switch input method and select the corresponding language. The keyboard will automatically sleep if there is no operation within 10 minutes. When you type any key, it will be activated. Power indicator will flash blue when the keyboard needs to be charged, please charge it in time. Fn+Space: Turn on or turn off Trackpad. Operating System: IOS15.0 and above (the device must support touch) Touch Setting (after wireless BT pairing is successful): Settings → General → Trackpad → tap to click / two-finger auxiliary tap (open) Sensitivity Settings: Settings → General → Trackpad → Tracking Speed (adjust to the appropriate speed manually) Manual change backlit color: Press the "Bulb" key to turn on the keyboard backlit. Then press the "RGB" key next to it to switch the color you like between 7 colors and click at a time to switch a color. Seven-color light cycle mode: Press the "Bulb" key once to turn on the keyboard backlit, press twice to turn on the seven-color light cycle mode, press three times to turn off the backlit. Adjust the brightness: Press the Fn + "Bulb" key to decrease or increase the brightness. 3 levels brightness: low, medium, high. Back to Home page Copy Search Select all Cut Switch color Next track Brightness- Paste Pause/Play Previous track Volume- Brightness- On/light cycle mode/Off Volume+ Lock screen Fn+ Touchpad on/off Single Finger Operation Three Fingers Operation Two Fingers Operation Single Finger Click Two Fingers Up/Down Swipe Two Fingers and Swipe Right Pinch Two Fingers Inwards Double Pointing Down Swipe Fingers Spread Out Two Fingers Swipe Left/Right Drag Open Control Center Single Finger Movement Swipe Up with Three Fingers Swipe up three points, pause and lift your finger Three fingers swipe left firstly, then swipe left and right to switch Open App Tap and hold the item, then slide your finger on the trackpad to move it. Scroll up or down Open Today view: When the home screen or lock screen is visible Enlarge ShrinkOpen Search from the main screen Scroll left or right Move the pointer with single finger to select the status icon in the upper right, then tap. Cursor sliding Back to home screen Switch between opening apps Open the APP switcher When you enter special keys, please press the Shift key + special key together. Such as @, please press Shift+@ at the same time. When the special character and symbol keys do not match what is coming up on the screen. Please Open Settings > General > Keyboard > Hardware Keyboard > Keyboard Type > ANSI (US), then restart and reconnect the keyboard to try it. When the letter and number keys do not match what is coming up on the screen. Please Open Settings > General > Keyboard > Keyboards > English (US) > QWERTY, then restart and reconnect the keyboard to try it. When double tap the space bar shows the period".", please Open Settings > General > Keyboard > "." Shortcut (turn it off) The first time using the keyboard, please charge the keyboard for at least 6 hours. Please charge it for at least 2 hours when the battery is run out of power. When the keyboard is not used for a long time, we suggest you turn off the keyboard to save battery. In order to extend battery life, we suggest you charge the keyboard when the power indicator is flashing. The connection distance between keyboard and iPad is within 32.8ft /10m. Open Tablet Settings > General > Keyboard > Hardware Keyboard > Caps Lock Language Switch keyboard (turn it off) OFF/ON Power Switch: Slide switch ON/OFF to turn on or off the keyboard. Power Indicator: When you slide the OFF/ON to On position, power indicator will light blue, then it goes off automatically after 5 seconds. Tips: Power indicator will flash blue when the battery needs to be charged. Pairing Indicator: Pairing indicator will flash blue when you press "Fn+C" button, ready for pairing with your tablet, it will go off automatically after connect successfully. Charge Indicator: The Charge indicator will always light red while the keyboard is charging, and it will go out when the keyboard is fully charged. Caps Lock Indicator: When caps lock indicator light blue, which means the keyboard is locked in capital letter. Product Specification Indicator Instruction Bluetooth Pairing Instruction Backlight Adjustment IOS System Touchpad Gestures Hot Keys description Please Note Tips Tips Slide power switch ON/OFF to on position, power indicator light blue 5s then goes off. Press "Fn+C" button, pairing indicator flashes. Turn on the Bluetooth at your tablet Settings. Find the “Bluetooth Keyboard”and select it. Tap pair when it shows Bluetooth Pairing Request. It will automatically connect the next time you use it. Note: If there is no response, please forget the previous Bluetooth Keyboard device and restart the keyboard. 1. 2. 3. 4. 4. 1. 2. 3. 1. 2. 3. 4. 1. 2. 3. 4. If the Caps Lock isn't work? 34 567 2 1 Switch Input Method Energy Saving Mode Low Battery Alert 8 FCC WARNING This device complies with part 15 of the FCC Rules. Operation is subject to the following twoconditions: (1) This device may not cause harmful interference; (2) This device must accept any interference received, including interference that may cause…

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Rev1/26/2023 DongguanJianqiangpijuTechnologyCo.,Ltd FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:8-24-2026 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BXTF-853-QB DongguanJianqiangpijuTechnologyCo.,Ltd certifiesthattheequipmentforwhichauthorizationissought isnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules. DongguanJianqiangpijuTechnologyCo.,Ltdcertifiesthattheequipmentforwhichauthorizationis soughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc. oranyofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyof itssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB 986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature) (Applicantprintedname): ZhangYiqiang Rev1/26/2023 DongguanJianqiangpijuTechnologyCo.,Ltd FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:8-24-2026 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BXTF-853-QB DongguanJianqiangpijuTechnologyCo.,Ltd certifiesthat,asofthedateofthefilingoftheapplication, theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiaries oraffiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname): ZhangYiqiang

DongguanJianqiangpijuTechnologyCo.,Ltd Date：8-24-2026 ProductModelNumber:853-QB-PM4130-01 FCCID:2BXTF-853-QB Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By:ZhangYiqiang ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:18826825946 Onbehalfof:DongguanJianqiangpijuTechnologyCo.,Ltd

DongguanJianqiangpijuTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:August28,2026 Subject;RequestforConfidentiality FCCID: 2BXTF-853-QB 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:ZhangYiqiang Title: Manager

Page1of3FCS202607433 Externalphotos Photo1 Photo2 Page2of3FCS202607433 Photo3 Photo4 Page3of3FCS202607433 Photo5 Photo6

LabelandLabelLocation FCCID:2BXTF-853-QB Thisdevicecomplieswithpart15oftheFCCRules. Operationissubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference; (2)Thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation. L*W:4cm*3cm labelandwhitefont

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No.FCS202607433 FCCRFExposure EUTDescription:853Bluetoothkeyboard ModelNo.:853-QB-PM4130-01 FCCID:2BXTF-853-QB Equipmenttype:portabledevice AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093,Unlessspecifically requiredbythepublishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-g extremitySARevaluationforgeneralpopulationexposureconditions,bymeasurement ornumenicasimulation,isnotrequiredwhenthecorrespondingSARTest ExclusionThresholocondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances<50mm,the1-gand10-gSARtestexclusion thresholdsaredeterminedbythefollowing: f(GHz)istheRFcharneltransmitfrequencyinGHzTheresultisroundedtoonedecimalplacefor comparison [(max.powerofchannel,includingtune-upfolerance,mW)/(mintestseparation distancemm)](viGHz)]<3.0for1-gSAR,ands7.5for10-gextremitySAR,where PoweranddistanceareroundedtothenearestmWandmmbeforecalculation LimitsforMaximumPermissibleExposure(MPE) BLE Frequency(MHz) Output power(dBm) Max tune- up(mW) Antenna Gain(dBi) Min. distance(mm) Calc. thresholds LimitResult 2402 3.06 2.02301.8750.62713.0000Pass 2440 2.94 1.96791.8750.61483.0000Pass 2480 2.39 1.73381.8750.54613.0000Pass Conclusion:NoSARisrequired

FCCTestReport ReportNo:FCS202607433W01 Issuedfor Applicant: DongguanJianqiangpijuTechnologyCo.,Ltd Address: Room401,Building7,No.55DongshanyongfaRoad,Qishi Town,DongguanCity,GuangdongProvince,China ProductName: 853Bluetoothkeyboard BrandName: N/A ModelName: 853-QB-PM4130-01 SeriesModel: N/A FCCID: 2BXTF-853-QB IssuedBy:FluxComplianceServiceLaboratory Add:Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-Tech Industrial,SongshanlakeDongguan Tel:0769-27280901Fax:0769-27280901http://www.FCS-lab.com Page 2 of40ReportNo.:FCS202607433W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:0769-27280901Fax:0769-27280901http://www.FCS-lab.com TESTRESULTCERTIFICATION Applicant’sName ...................... :DongguanJianqiangpijuTechnologyCo.,Ltd Address ...................................... : Room401,Building7,No.55DongshanyongfaRoad,QishiTown, DongguanCity,GuangdongProvince,China Manufacture'sName................:DongguanJianqiangpijuTechnologyCo.,Ltd Address......................................: Room401,Building7,No.55DongshanyongfaRoad,QishiTown, DongguanCity,GuangdongProvince,China ProductDescription ProductName ........................... :853Bluetoothkeyboard BrandName...............................:N/A ModelName .............................. :853-QB-PM4130-01 SeriesModel..............................: Seethefirstpageofthereport TestStandards .......................... :FCCRulesandRegulationsPart15SubpartC,Section247 TestProcedure..........................: ANSIC63.10-2020+Cor.1-2023+C63.10a-2024+Erratato C63.10a-2024 ThisdevicedescribedabovehasbeentestedbyFluxComplianceServiceLaboratory,thetestresults showthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditis applicableonlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofFluxCompliance ServiceLaboratory,thisdocumentmaybealteredorrevisedbyFluxComplianceServiceLaboratory, personalonly,andshallbenotedintherevisionofthedocument.. DateofTest...................................: Date(s)ofperformanceoftests.:July30,2026~Aug.13,2026 DateofIssue ................................. :Aug.13,2026 TestResult.....................................:Pass Testedby: (orangeOuYang) Reviewedby : (Jayden) Approvedby: ( JackWang ) Page 3 of40ReportNo.:FCS202607433W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:0769-27280901Fax:0769-27280901http://www.FCS-lab.com TableofContentsPage 1.SUMMARYOFTESTRESULTS..............................................................................................6 1.1TESTFACTORY................................................................................................................7 1.2MEASUREMENTUNCERTAINTY.....................................................................................7 2.GENERALINFORMATION.......................................................................................................8 2.1GENERALDESCRIPTIONOFTHEEUT..........................................................................8 2.2BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED.............10 2.3DESCRIPTIONOFNECESSARYACCESSORIESANDSUPPORTUNITS.................11 2.4EQUIPMENTSLIST.........................................................................................................12 3.CONDUCTEDEMISSIONMEASUREMENT.........................................................................13 4.6DBBANDWIDTH..................................................................................................................17 4.1Limit..................................................................................................................................17 4.2TestProcedure.................................................................................................................17 4.3Testsetup.........................................................................................................................17 4.4Testresults.......................................................................................................................17 4.5OriginalTestData.............................................................................................................18 5.CONDUCTEDOUTPUTPOWER...........................................................................................22 5.1LIMIT................................................................................................................................22 5.2TESTPROCEDURE........................................................................................................22 5.3TESTSETUP...................................................................................................................22 5.5TESTRESULTS...............................................................................................................22 6.BANDEDGEANDSPURIOUS(CONDUCTED)....................................................................23 6.1LIMIT................................................................................................................................23 6.2TESTPROCEDURE........................................................................................................23 6.3TESTSETUP...................................................................................................................23 6.4TESTRESULTS...............................................................................................................24 6.5Originaltestdata..............................................................................................................24 7.POWERSPECTRALDENSITY..............................................................................................26 7.1LIMIT...................................................................................................................…

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UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Report for Broadcom By Alfred Grau UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Tested Products. • Antenna 1: integrated antenna. • Frequency = 2.402GHz. • Frequency = 2.441GHz. • Frequency = 2.480GHz. UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Coordinate System Reference: Antenna 1. Top view Side view Z Y X Front view Front viewRear view SMA connect or X Z Y Manufacturer: Shenzhen Siyuan Tongda Electronic Technology Co., Ltd Adress : 201, Building 1, No. 16 Shangnan Shangliao Industrial Road, Shangliao Community, Xinqiao Street, Bao'an District, Shenzhen Antenna type:PCB Antenna 11.6mm 4.4mm 4.3mm 3.6mm 7mm 0.7mm UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XZ Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. YZ Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XY Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XZ Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. YZ Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XY Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XZ Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. YZ Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XY Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Return Loss: Antenna 1 BW(-10dB) ¡ 13.48% 2 2.2 2.4 2.6 2.8 3 Frequency (GHz) -16-14-12-10 -8-6-4-2 R e t u r n L o s s ( d B ) UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Measurements summary Frequency (GHz) Plane Return Loss (dB) Polarization Gain max. (dBi) θ for Gain max. φ for Gain max. Antenna 1 2.402 XZ -10.90 Vertical -7.8 290 2.402 XZ -10.90 Horizontal 0.786 182 2.402 YZ -10.90 Vertical 1.21 226 2.402 YZ -10.90 Horizontal -7.75 10 2.402 XY -10.90 Vertical -15.4 20 2.402 XY -10.90 Horizontal 0.93 180 2.441 XZ -12.20 Vertical -7.36 318 2.441 XZ -12.20 Horizontal 1.32 180 2.441 YZ -12.20 Vertical 0.981 204 2.441 YZ -12.20 Horizontal -8.23 24 2.441 XY -12.20 Vertical -14.1 -14 2.441 XY -12.20 Horizontal 1.74 180 2.48 XZ -13.80 Vertical -7.95 312 2.48 XZ -13.80 Horizontal 1.81 186 2.48 YZ -13.80 Vertical 0.204 214 2.48 YZ -13.80 Horizontal -8.38 8 2.48 XY -13.80 Vertical -15.8 12 2.48 XY -13.80 Horizontal 1.87 180

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