2AK23RC302BDRemote control

KeesonTechnologyCorporationLimited No.1508,XiushuiRoad,WangJiangjingTown,XiuzhouDistrict,JiaxingCity,ZhejiangP rovince,China CoveredEquipmentCertificationAttestationLetter 2/26/2026 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa K1V1H2 Canada ATTN.:ReviewingEngineer FCCID:2AK23RC302BD KeesonTechnologyCorporationLimited(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. KeesonTechnologyCorporationLimited(“theapplicant”)certifiesthat,asofthedateof thefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasan entityproducing“covered”equipment. KeesonTechnologyCorporationLimited(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtdoesnotincludecybersecurityoranti-virussoftware producedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees, includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:SamXu Title:CertificationManager CompanyName:KeesonTechnologyCorporationLimited Date:2/26/2026

Global Product Services & Consultation LLC U.S. Agent Designation for Service of Process - Certification Attestation Letter 3/27/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AK23RC302BD FRN of Grantee: 0026187013 Per section 2.911(d)(7) of the FCC rules, Keeson Technology Corporation Limited. (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Global Product Services and Consultation LLC FCC Registration Number (FRN): 0033406703 Physical U.S. Company Address: 328 W Palm Ave. Monrovia, CA91016, United States Contact Person: Michael Chan Agent Email Address: [email protected] Tel: (626) 366-4358 The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Agent Signed: Signed: Printed name: Sam Xu Title: Certification Manager Company: Keeson Technology Corporation Limited Date: 3/27/2026 Signed: Printed name: Michael Chan Title: Technical Director Company Name: Global Product Services and Consultation LLC Date: 3/27/2026 SC:6037242

Keeson Technology Corporation Limited No.1508, Xiushui Road, WangJiangjing Town, Xiuzhou District, Jiaxing City,Zhejiang P rovince, China Family Certification Attestation Letter 2/26/2026 Nemko Canada Inc 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2AK23RC302BD Models: RC302B、RC302C、RC302D We hereby request Family Certification for the above mentioned HVINs/Models based on them being electrically, these differences do not affect RF performance. The specific differences are as follows: 1. In terms of product functions and appearance, The RC302B remote control lacks 3 function buttons compared to the RC302D remote control. The RC302B remote control also lacks the surface-mount resistors and surface-mount diodes located at these 3 function buttons. 2. In terms of product functions and appearance, The RC302C remote control lacks 1 function buttons compared to the RC302D remote control. The RC302C remote control also lacks the surface-mount resistors and surface-mount diodes located at these 1 function buttons. 3. The colors of RC302B, RC302C, and RC302D will vary. 4. The structures of RC302B, RC302C, and RC302D are the same. therefore the test performed on the model RC302D. Signed: Printed name: Sam Xu Title: Certification Manager Date: Keeson Technology Corporation Limited

KeesonTechnologyCorporationLimited No.1508,XiushuiRoad,WangJiangjingTown,XiuzhouDistrict,JiaxingCity,ZhejiangProvince,China April21,2026 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa,Ontario,Canada K1V1H2 REQUESTFORCONFIDENTIALITY-FCC FCCID: 2AK23RC302BD PursuanttoSections0.457(d)and0.459oftheCommission’sRulesandFCCGuidancedocument 726920,weherebyrequestpermanentconfidentialtreatmentofexhibitsidentifiedassuchinthe tablebelowandrequesttheyarepermanentlywithheldfrompublicreviewbasedonthedocuments containingtradesecretsandproprietaryinformationnotcustomarilyreleasedtothepublic.The publicdisclosureofthisinformationmightbeharmfultotheapplicantandprovideunjustifiedbenefits toitscompetitors. Wealsorequestshort-termconfidentialityoncertainexhibitsuntiltheintendeddateofmarketingas outlinedbelow.Werequesttheexhibitsbewithheldfrompublicviewforaperiodof180days.We attestmarketingoftheproductwillonlycommenceaftertheperiodofshort-termconfidentiality expires,orifmarketingistocommencebeforetherequestednumberofdayslistedabove,the granteewillinformNemkotoreleasetheShort-TermConfidentialityinformationwithheldontheFCC equipmentauthorizationwebsite. ExhibitTypeofConfidentialityRequested BlockDiagrams☒Permanent☐ShortTerm ExternalPhotos------------------☒ShortTerm InternalPhotos☐Permanent*☒ShortTerm OperationDescription☒Permanent☐ShortTerm PartsList&Placement/BOM☒Permanent☐ShortTerm Tune-UpProcedure ☐ Permanent ☐ShortTerm SchematicDiagrams☒Permanent☐ShortTerm TestSetupPhotos------------------☒ShortTerm User’sManual☐Permanent*☒ShortTerm Theasteriskeditems(*)requirefurtherinformationtobeprovidedinthisjustificationletterbeforepermanentconfidentiality willbeextendedtotheseexhibits.PleaserefertoFCCKDB726920D01foundat: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731andreviewsectionII,3)regarding specificinformationthatmustaccompanytheserequests. Note:anydocumentsheldundertheShort-Termconfidentialitywillautomaticallybecomepublic aftertherequestedtimeifanappropriateextensionrequesthasnotbeenreceived.Anyexhibits (i.e.,schematicdiagrams)thatmayhavealreadybeenrequestedtohave“Permanent” confidentialityasshownaboveneednotberepeatedunderShort-Termconfidentialityrequest. Sincerely, Signed: Printedname:SamXu Title:CertificationManager CompanyName:KeesonTechnologyCorporationLimited

RC302B Labellocation

RC302C Labellocation

RC302DLabellocation

Keeson Technology Corporation Limited FCC ID: 2AK23RC302BD Page 1 of 3 Audix Technology (Shanghai) Co., Ltd. JAREY LU / Deputy Assistant Manager HUIMIN YAN / Assistant RADIO FREQUENCY EXPOSURE EVALATION General Information Applicant : Keeson Technology Corporation Limited EUT Description : REMOTE CONTROL Model No. : RC302B, RC302C, RC302D Radio Tech : GFSK Frequency : 2403MHz-2480MHz Description of Test Facility Name of Firm : Audix Technology (Shanghai) Co., Ltd. Site Location : 3F, Building 34, No. 680 Guiping Rd., Caohejing, Hi-Tech Park, Shanghai 200233, China NVLAP, Lab Code : 200371-0 FCC Designation Number : CN5027 Test Firm Registration Number: 954668 Results The EUT is operated as one portable device, and it is compliant with the RF Exposure Exemption. Producer : Keeson Technology Corporation Limited FCC ID: 2AK23RC302BD Page 2 of 3 Audix Technology (Shanghai) Co., Ltd. Evaluation Method KDB 447498 D04 Interim General RF Exposure Guidance v01 Applicable Standard: KDB 447498 D04 v01: Section 2.1.3: SAR-Based Exemption. A more comprehensive exemption, considering a variable power threshold that depends on both the separation distance and power, is provided in § 1.1307(b)(3)(i)(B). This exemption is applicable to the frequency range between 300 MHz and 6 GHz, with test separation distances between 0.5 cm and 40 cm, and for all RF sources in fixed, mobile, and portable device exposure conditions. Accordingly, a RF source is considered an RF exempt device if its available maximum time-averaged (matched conducted) power or its effective radiated power (ERP), whichever is greater, are below a specified threshold. This exemption threshold was derived based on general population 1-g SAR requirements and is detailed in Appendix C. FCC CFR 47 §1.1307(b)(3)(i)(B): A single RF source is exempt if the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). P th is given by: Keeson Technology Corporation Limited FCC ID: 2AK23RC302BD Page 3 of 3 Audix Technology (Shanghai) Co., Ltd. RF Exposure evaluation: Mode Frequency Output Power Antenna Gain Maximum EIRP Threshold P th Verdict (MHz) (dBm) (mW) (dBi) (dBm) (mW) (mW) GFSK 2403 1.034 1.27 0 1.034 1.27 2.79 Compliant Note1: For this EUT which operated as portable device, the separation distance is 0.5 cm. Note2: The Conducted output power and Maximum EIRP both no greater than the threshold P th , that meets the exemption, the RF exposure evaluation is not required. Note3: Maximum EIRP (dBm)=Output Power (dBm)+ Antenna Gain (dBi). -END-

ANTENNA SPECIFICATION As shown below, the RF-M01 module antenna is a 2.4G serpentine inverted- F antenna with a maximum gain of 0 dbi. 1. 2.4G PCB printed circuit board diagram 2. Antenna size drawing: 3. Antenna reflection coefficient 4. Antenna radiation pattern 5. Antenna efficiency Supplier: Shenzhen Hisigns Electronic Technology Co., Ltd Company Address: Room 203, Building F, Zhongfen Zhigu, Longcheng Avenue, Longgang Street, Longgang District, Shenzhen

Keeson Technology Corporation Limited FCC ID: 2AK23RC302B Page 1 of 52 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F26042 Prepared For: Keeson Technology Corporation Limited No.1508, Xiushui Road, WangJiangjing Town, Xiuzhou District, Jiaxing City, Zhejiang Province,China Prepared By: Audix Technology (Shanghai) Co., Ltd. 3F, Building 34, No. 680 Guiping Rd., Caohejing, Hi-Tech Park, Shanghai 200233, China Tel: +86-21-64955500 File No. : C1D2602003 Report No. : ACI-F26042 Date of Test : 2026.02.11-14 Date of Report : 2026.02.25 TEST REPORT On behalf of Keeson Technology Corporation Limited REMOTE CONTROL Model No.: RC302B, RC302C, RC302D FCC ID: 2AK23RC302B The statement is based on a single evaluation of one sample of the above-mentioned products. It does not imply an assessment of the whole production and does not permit the use of the test lab logo. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the U.S. Government. TESTING NVLAP LAB CODE 200371-0 Keeson Technology Corporation Limited FCC ID: 2AK23RC302B Page 2 of 52 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F26042 TABLE OF CONTENTS Page 1 SUMMARY OF STANDARDS AND RESULTS .......................................................................... 5 1.1 Description of Standards and Results ......................................................................................... 5 2 GENERAL INFORMATION .......................................................................................................... 6 2.1 Description of Equipment Under Test ........................................................................................ 6 2.2 EUT Specifications Assessed in Current Report ........................................................................ 7 2.3 Test Information ......................................................................................................................... 7 2.4 Duty Cycle Check ...................................................................................................................... 8 2.5 Sample Description .................................................................................................................... 8 2.6 Supported equipment .................................................................................................................. 8 2.7 Description of Test Facility ........................................................................................................ 8 3 RADIATED EMISSION TEST ....................................................................................................... 9 3.1 Test Equipment ........................................................................................................................... 9 3.2 Block Diagram of Test Setup ................................................................................................... 10 3.3 Radiated Emission Limit .......................................................................................................... 12 3.4 Test Configuration .................................................................................................................... 12 3.5 Operating Condition of EUT .................................................................................................... 12 3.6 Test Procedures ........................................................................................................................ 12 3.7 Test Results .............................................................................................................................. 14 4 6 DB BANDWIDTH MEASUREMENT ...................................................................................... 35 4.1 Test Equipment ......................................................................................................................... 35 4.2 Block Diagram of Test Setup ................................................................................................... 35 4.3 Specification Limits (§15.247(a)(2)) ........................................................................................ 35 4.4 Operating Condition of EUT .................................................................................................... 35 4.5 Test Procedure .......................................................................................................................... 35 4.6 Test Results .............................................................................................................................. 36 5 MAXIMUM PEAK OUTPUT POWER MEASUREMENT ...................................................... 38 5.1 Test Equipment ......................................................................................................................... 38 5.2 Block Diagram of Test Setup ................................................................................................... 38 5.3 Specification Limits ((§15.247(b)(3)) ...................................................................................... 38 5.4 Operating Condition of EUT .................................................................................................... 38 5.5 Test Procedure .......................................................................................................................... 38 5.6 Test Results .............................................................................................................................. 39 6 EMISSION LIMITATIONS MEASUREMENT ......................................................................... 41 6.1 Test Equipment ......................................................................................................................... 41 6.2 Block Diagram of Test Setup ................................................................................................... 41 6.3 Specification Limits (§15.247(d)) ..…

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