2BUVQ-DT03-3Star Projector

ZhejiangYoukelaIntelligentTechnologyCo.,Ltd Address ： No.202,DongxingRoad,JiangdongStreet,YiwuCity,ZhejiangProvince,China. Date: 2026-06-08 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing SUBJECT: FCCApplication for FCC ID: 2BUVQ-DT03-3 FRN:0038005427 (“Zhejiang Youkela Intelligent Technology Co.,Ltd”) certifies that, asof the date of the filing of the application, CELLT INC. is our designated U.S. agent for service of process for the above referenced FCC ID. (“Zhejiang Youkela Intelligent Technology Co.,Ltd”)accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. CELLT INC. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: CELLT INC. Address: 1401 21ST ST# 12958 SACRAMENTO, CA 95811 United States FRN：0036412567 Contact Person: Thompson Lim Tel.: (424) 347-4188 Email: [email protected] Sincerely, Signed on behalf of Zhejiang Youkela Intelligent Technology Co.,Ltd Signed on behalf of CELLT INC. Name: WEI JUNName: Thompson Lim Title: ManagerTitle:General Manager Date: 2026-06-08Date: 2026-06-08

Rev1/26/2023 ZhejiangYoukelaIntelligentTechnologyCo.,Ltd FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:06-05-2026 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BUVQ-DT03-3 (“ZhejiangYoukelaIntelligentTechnologyCo.,Ltd”)certifiesthattheequipmentforwhichauthorization issoughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. (“ZhejiangYoukelaIntelligentTechnologyCo.,Ltd”)certifiesthattheequipmentforwhichauthorization issoughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(or anyofitssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB 986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature)WEIJUN (Applicantprintedname) Rev1/26/2023 ZhejiangYoukelaIntelligentTechnologyCo.,Ltd FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:06-05-2026 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BUVQ-DT03-3 (“ZhejiangYoukelaIntelligentTechnologyCo.,Ltd”)certifiesthat,asofthedateofthefilingofthe application,ZhejiangYoukelaIntelligentTechnologyCo.,LtdisnotidentifiedontheCoveredList(asa specificallynamedentityoranyofitssubsidiariesoraffiliates)asanentityproducing“covered” equipment. Sincerely, (Applicantsignature) (Applicantprintedname)WEIJUN

ZhejiangYoukelaIntelligentTechnologyCo.,Ltd Date ： 06-05-2026 Product/ModelNumber:StarProjector/DT03-3,DT03 FCCID ： 2BUVQ-DT03-3 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By:WEIJUN ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:18267978302 Onbehalfof:ZhejiangYoukelaIntelligentTechnologyCo.,Ltd

ZhejiangYoukelaIntelligentTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:June5,2026 Subject;RequestforConfidentiality FCCID:2BUVQ-DT03-3 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:WEIJUN Title:Manager

ZhejiangYoukelaIntelligentTechnologyCo.,Ltd ProductSimilarityDeclaration Productname:StarProjector Modelname:DT03-3,DT03 FCCID:2BUVQ-DT03-3 We(ZhejiangYoukelaIntelligentTechnologyCo.,Ltd)hereby statethatallthemodelsareelectricalidenticalincludingthesame softwareparameterandhardwaredesign(i.e.,circuitdesign,PCB Layout,RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),theonly differencearemodelname. Signature: Name:WEIJUN Title:Manager Place,date:Yiwu,2026.06.05

Label: StarProjector Model:DT03-3 FCCID:2BUVQ-DT03-3 35mm 20mm

FCCID:2BUVQ-DT03-3 RFExposureEvaluation According toKDB 447498 D01 General RF Exposure Guidance v06and part 2.1093 ， Unless specifically required by thepublished 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 whenthe correspondingSAR Test Exclusion Thresholdcondition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SARtest exclusion thresholds aredetermined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] ꞏ [√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 thenearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, So a SAR test is not required ModeFreque ncy (MHz) Max Power (dBm) Target power W/ tolerance (dBm) Max tune up power tolerance (dBm) Max Power (mW) Min. Distanc e (mm) Calc. threshol ds limit GFSK 2402 -2.09 -2 ± 1 -1 0.79435.000.2462 3.0 2441 -2.68 -2±1-1 0.79435.000.2482 3.0 2480 -3.42 -3 ± 1 -2 0.63105.000.1987 3.0 Π /4-DQ PSK 2402 -1.28 -1±10 1.00005.000.3100 3.0 2441 -1.87 -1 ± 1 3 1.99535.000.6235 3.0 2480 -2.55 -2 ± 1 -1 0.79435.000.2502 3.0

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 16mm Antenna type Antenna Photo & Length (mm) Manufacturer:Zhejiang Youkela Intelligent Technology Co.,Ltd Address:No. 202, Dongxing Road, Jiangdong Street, Yiwu City, Zhejiang Province, China. PCB Antenna Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) Frequency (MHz) MaxMinAvg 2400-1.26174-30.0801-7.18716 2450-0.765802-36.5604-7.48023 2500-0.585582-22.0315-6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dBi) Frequency (MHz) MaxMinAvg 2400-5.2537-22.1424-12.4294 2450-2.4652-24.5837-10.4702 2500-1.86120-29.5214-9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page1of45 RF Test Data Duty Cycle........................................................................................................................................................................2 Maximum Peak Conducted Output Power.......................................................................................................................6 -20dB Bandwidth............................................................................................................................................................10 Occupied Channel Bandwidth........................................................................................................................................14 Band Edge......................................................................................................................................................................18 Band Edge(Hopping)......................................................................................................................................................23 Conducted RF Spurious Emission.................................................................................................................................28 Carrier Frequencies Separation.....................................................................................................................................35 Number of Hopping Channel..........................................................................................................................................37 Dwell Time......................................................................................................................................................................39 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page2of45 Duty Cycle ConditionModeFrequency (MHz)AntennaDuty Cycle (%)Correction Factor (dB)1/T (kHz) NVNT 1-DH12402Ant130.125.212.66 NVNT 1-DH12441Ant130.125.212.66 NVNT 1-DH12480Ant130.115.212.66 NVNT 2-DH12402Ant131.245.052.56 NVNT 2-DH12441Ant131.285.052.56 NVNT 2-DH12480Ant131.285.052.56 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page3of45 Duty Cycle NVNT 1-DH1 2402MHz Ant1 Duty Cycle NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page4of45 Duty Cycle NVNT 1-DH1 2480MHz Ant1 Duty Cycle NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page5of45 Duty Cycle NVNT 2-DH1 2441MHz Ant1 Duty Cycle NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page6of45 Maximum Peak Conducted Output Power Conditio n ModeFrequenc y(MHz) Antenn a Conducte dPower (dBm) Total Conducte dPower (dBm) Total Conducte dPower (W) Limit Conducted(dB m) Verdic t NVNT 1-DH 1 2402Ant1-2.09-2.090.0006221Pass NVNT 1-DH 1 2441Ant1-2.68-2.680.0005421Pass NVNT 1-DH 1 2480Ant1-3.42-3.420.0004521Pass NVNT 2-DH 1 2402Ant1-1.28-1.280.0007421Pass NVNT 2-DH 1 2441Ant1-1.87-1.870.0006521Pass NVNT 2-DH 1 2480Ant1-2.55-2.550.0005621Pass Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page7of45 Peak Power NVNT 1-DH1 2402MHz Ant1 Peak Power NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page8of45 Peak Power NVNT 1-DH1 2480MHz Ant1 Peak Power NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page9of45 Peak Power NVNT 2-DH1 2441MHz Ant1 Peak Power NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page10of45 -20dB Bandwidth ConditionModeFrequency (MHz) Antenna-20 dB Bandwidth (MHz) Limit -20 dB Bandwidth (MHz) Verdict NVNT 1-DH12402Ant10.9126/Pass NVNT 1-DH12441Ant10.9037/Pass NVNT 1-DH12480Ant11.005/Pass NVNT 2-DH12402Ant11.292/Pass NVNT 2-DH12441Ant11.271/Pass NVNT 2-DH12480Ant11.269/Pass Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page11of45 -20dB Bandwidth NVNT 1-DH1 2402MHz Ant1 -20dB Bandwidth NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page12of45 -20dB Bandwidth NVNT 1-DH1 2480MHz Ant1 -20dB Bandwidth NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page13of45 -20dB Bandwidth NVNT 2-DH1 2441MHz Ant1 -20dB Bandwidth NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page14of45 Occupied Channel Bandwidth ConditionModeFrequency (MHz)Antenna99% OBW (MHz) NVNT1-DH12402Ant10.85862 NVNT1-DH12441Ant10.86377 NVNT1-DH12480Ant10.87399 NVNT2-DH12402Ant11.1604 NVNT2-DH12441Ant11.1849 NVNT2-DH12480Ant11.1865 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page15of45 OBW NVNT 1-DH1 2402MHz Ant1 OBW NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page16of45 OBW NVNT 1-DH1 2480MHz Ant1 OBW NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page17of45 OBW NVNT 2-DH1 2441MHz Ant1 OBW NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page18of45 Band Edge ConditionModeFrequency (MHz) AntennaHopping Mode Max Value (dBc) Limit (dBc) Verdict NVNT 1-DH12402Ant1No-Hopping-46.68-20Pass NVNT 1-DH12480Ant1No-Hopping-48.13-20Pass NVNT 2-DH12402Ant1No-Hopping-45.9-20Pass NVNT 2-DH12480Ant1No-Hopping-48.25-20Pass Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page19of45 Band Edge NVNT 1-DH1 2402MHz Ant1 No-Hopping Ref Band Edge NVNT 1-DH1 2402MHz Ant1 No-Hopping Emission Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page20of45 Band Edge NVNT 1-DH1 2480MHz Ant1 No-Hopping Ref Band Edge NVNT 1-DH1 2480MHz Ant1 No-Hopping Emission Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page21of45 Band Edge NVNT 2-DH1 2402MHz Ant1 No-Hopping Ref Band Edge NVNT 2-DH1 2402MHz Ant1 No-Hopping Emission Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page22of45 Band Edge NVNT 2-DH1 2480MHz Ant1 No-Hopping Ref Band Edge NVNT 2-DH1 2480MHz Ant1 No-Hopping Emission Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page23of45 Band Edge(Hopping) ConditionModeFrequency (MHz) AntennaHopping Mode Max Value (dBc) Limit (dBc) Verdict NVNT 1-DH12402Ant1Hopping-48.3-20Pass NVNT 1-DH12480Ant1Hopping-47.62-20Pass NVNT 2-DH12402Ant1Hopping-48.41-20Pass NVNT 2-DH12480Ant1Hopping-47.4-20Pass Report No.:SZNTT26017406E1-1 SZNTT-TR728-0Page24of45 Band Edge(Hopping) NVNT 1…

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Shenzhen NTT Testing Technology Co.,Ltd.Report No.: SZNTT26017406E1-1 SZNTT-TR838-0Tel:0755-27889935Web:http://www.ntt-testing.comPage 1 of 30 TEST REPORT Applicant: Zhejiang Youkela Intelligent Technology Co.,Ltd Address: No. 202, Dongxing Road, Jiangdong Street, Yiwu City, Zhejiang Province, China. Manufacturer : Zhejiang Youkela Intelligent Technology Co.,Ltd Address: No. 202, Dongxing Road, Jiangdong Street, Yiwu City, Zhejiang Province, China. Product Name : Star Projector Model Number : DT03-3, DT03 Trademark: YOUKELUX FCC ID: 2BUVQ-DT03-3 Test Date: Apr. 30, 2026 – May 13, 2026 Date of Report : May 14, 2026 Test Result: This device described above has been tested by NTT, and the test results show that the equipment under test (EUT) is in compliance with the Standard requirements. And it is applicable only to the tested sample identified in the report. Test Procedure Used: Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10-2020+Cor.1-2023 KDB 558074 D01 15.247 Meas Guidance v05r02April 2,2019 Prepared by(Test Engineer): Zhao Di Reviewer(Supervisor): Ken Wu Approved(Manager): Abel Yu Shenzhen NTT Testing Technology Co.,Ltd.Report No.: SZNTT26017406E1-1 SZNTT-TR838-0Tel:0755-27889935Web:http://www.ntt-testing.comPage 2 of 30 TABLE OF CONTENT 1. General Information....................................................................................5 1.1. Description of Device (EUT).......................................................................................................................5 1.2. Channel List..................................................................................................................................................5 1.3. Summary of test result................................................................................................................................6 1.4. Special Accessories and Auxiliary Equipment........................................................................................6 1.5. Test mode......................................................................................................................................................6 1.6. Test configuration.........................................................................................................................................7 1.7. Block Diagram...............................................................................................................................................7 1.8. Test Conditions.............................................................................................................................................7 1.9. Measurement Uncertainty (95% confidence levels, k=2)......................................................................8 1.10. Test Facility..................................................................................................................................................8 1.11. Test Equipment...........................................................................................................................................9 2. Conducted emission at the mains terminals test...................................11 2.1. Limit..............................................................................................................................................................11 2.2. Test Setup....................................................................................................................................................11 2.3. Test Procedure............................................................................................................................................11 2.4. Test Result..................................................................................................................................................12 3. Radiated Spurious Emissions..................................................................14 3.1. Limit..............................................................................................................................................................14 3.2. Test Setup....................................................................................................................................................15 3.3. Test Procedure............................................................................................................................................17 3.4. Test Result...................................................................................................................................................18 4. Maximum Peak Output Power..................................................................23 4.1. Limit..............................................................................................................................................................23 4.2. Test Setup....................................................................................................................................................23 4.3. Test Procedure............................................................................................................................................23 4.4. Test Result...................................................................................................................................................23 5. -20 dB Bandwidth Measurement..............................................................24 5.1. Limit..............................................................................................................................................................24 5.2. Test Setup....................................................................................................................................................24 5.3. Test Procedure............................................................................................................................................24 5.4. Tes…

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