2BVO2TLSR8258Wireless module

LIVOLOINTERNATIONALELECTRICLTD. CoveredEquipmentCertificationAttestationLetter 6/1/2026 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa K1V1H2 Canada ATTN.:ReviewingEngineer FCCID:2BVO2TLSR8258 LIVOLOINTERNATIONALELECTRICLTD. (“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. LIVOLOINTERNATIONALELECTRICLTD. (“theapplicant”)certifiesthat,asofthedateof thefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. LIVOLOINTERNATIONALELECTRICLTD.(“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtdoesnotincludecybersecurityoranti-virussoftware producedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees, includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:JasonZhu Title:SalesManager CompanyName:LIVOLOINTERNATIONALELECTRICLTD. Date:6/1/2026

Global Product Services & Consultation LLC U.S. Agent Designation for Service of Process - Certification Attestation Letter 4/17/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BVO2TLSR8258 FRN of Grantee: 0038305249 Per section 2.911(d)(7) of the FCC rules, LIVOLO INTERNATIONAL ELECTRIC LTD. (“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: Signed: Printed name: Jason Zhu Company: LIVOLO INTERNATIONAL ELECTRIC LTD Address: Wenzhou, China Date: 4/17/2026 Agent Signed: Signed: Printed name: Michael Chan Title: Technical Director Company Name: Global Product Services and Consultation LLC Date: 4/19/2026 SC:6045771

LIVOLOINTERNATIONALELECTRICLTD. Room301,Building23ZhiXinShiShangXiaoWeiYuan,16Binhai2ndRoad,YongxingStrWenzhou, Zhejiang,China April22,2026 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa,Ontario,Canada K1V1H2 REQUESTFORCONFIDENTIALITY-FCC FCCID:2BVO2TLSR8258 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:JasonZhu Title:SalesManager CompanyName:LIVOLOINTERNATIONALELECTRICLTD.

LIVOLOINTERNATIONALELECTRICLTD. Date(25/5/2026) FederalCommunicationsCommission EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 ModularApprovalRequest FCCID: 2BVO2TLSR8258 Thefollowingattestationaddressestherequirementstosupportmodularapproval: ModularapprovalrequirementYes(providebriefstatement)No* (a)Theradioelementsmusthavethe radiofrequencycircuitryshielded. Physicalcomponentsandtuning capacitor(s)maybelocatedexternal totheshield,butmustbeonthe moduleassembly Complies (b)Themodulemusthavebuffered modulation/datainputstoensurethat thedevicewillcomplywithPart15 requirementswithanytypeofinput signal Complies (c)Themodulemustcontainpower supplyregulationonthemodule Complies (d)Themodulemustcontaina permanentlyattachedantenna,or containauniqueantennaconnector, andbemarketedandoperatedonly withspecificantenna(s),perSections 15.203,15.204(b),15.204(c), 15.212(a),2.929(b) Complies (e)Themodulemustdemonstrate complianceinastand-alone configuration Complies (f)Themodulemustbelabelledwith itspermanentlyaffixedFCCIDlabel, oruseanelectronicdisplay(See KDBPublication784748about labellingrequirements) Complies (g)Themodulemustcomplywithall specificrulesapplicabletothe transmitter.Thegranteemustprovide comprehensiveinstructionstoexplain compliancerequirements Complies ModularapprovalrequirementYes(providebriefstatement)No* (h)ThemodulemustcomplywithRF exposurerequirements Complies *Pleaseprovideadetailedexplanationiftheansweris“No.” Sincerely, Signed: Printedname:JasonZhu Title:SalesManager

labellocation

LIVOLO INTERNATIONAL ELECTRIC LTD. FCC ID: 2BVO2TLSR8258 Page 1 of 3 Audix Technology (Shanghai) Co., Ltd. JAREY LU / Deputy Assistant Manager HUIMIN YAN / Assistant RADIO FREQUENCY EXPOSURE EVALATION General Information Applicant : LIVOLO INTERNATIONAL ELECTRIC LTD. EUT Description : Wireless module Model No. : TLSR8258 Radio Tech : IEEE 802.15.4 (OQPSK) Frequency : 2405MHz 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 one module, and it can operated as portable device, and it is compliant with the RF Exposure Exemption. Producer : LIVOLO INTERNATIONAL ELECTRIC LTD. FCC ID: 2BVO2TLSR8258 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: LIVOLO INTERNATIONAL ELECTRIC LTD. FCC ID: 2BVO2TLSR8258 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) 802.15.4 2405 -0.424 0.91 2 1.576 1.437 2.78 Compliant Note1: For this EUT which can operated as portable device, the separation distance is 0.5 c m. 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-

LIVOLO INTERNATIONAL ELECTRIC LTD. FCC ID: 2BVO2TLSR8258 Page 1 of 41 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F26032 Prepared For: LIVOLO INTERNATIONAL ELECTRIC LTD. Room 301, Building 23 ZhiXin ShiShang XiaoWeiYuan, 16 Binhai 2nd Road,Yongxing Str Wenzhou, Zhejiang, 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. : C1D2510057 Report No. : ACI-F26032 Date of Test : 2026.01.29-05.24 Date of Report : 2026.05.28 TEST REPORT On behalf of LIVOLO INTERNATIONAL ELECTRIC LTD. Product Name Model Number Wireless module TLSR8258 FCC ID: 2BVO2TLSR8258 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 LIVOLO INTERNATIONAL ELECTRIC LTD. FCC ID: 2BVO2TLSR8258 Page 2 of 41 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F26032 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 ...................................................................................................................... 7 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 ...................................................................................... 27 4.1 Test Equipment ......................................................................................................................... 27 4.2 Block Diagram of Test Setup ................................................................................................... 27 4.3 Specification Limits (§15.247(a)(2)) ........................................................................................ 27 4.4 Operating Condition of EUT .................................................................................................... 27 4.5 Test Procedure .......................................................................................................................... 27 4.6 Test Results .............................................................................................................................. 28 5 MAXIMUM PEAK OUTPUT POWER MEASUREMENT ...................................................... 30 5.1 Test Equipment ......................................................................................................................... 30 5.2 Block Diagram of Test Setup ................................................................................................... 30 5.3 Specification Limits ((§15.247(b)(3)) ...................................................................................... 30 5.4 Operating Condition of EUT .................................................................................................... 30 5.5 Test Procedure .......................................................................................................................... 30 5.6 Test Results .............................................................................................................................. 31 6 EMISSION LIMITATIONS MEASUREMENT ......................................................................... 33 6.1 Test Equipment ......................................................................................................................... 33 6.2 Block Diagram of Test Setup ................................................................................................... 33 6.3 Specification Limits (§15.24…

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AntennaInformation 1.Manufacturer’sname: ShenzhenJLCTechnologyGroupCo.,Ltd. 2.manufacturer’saddress: 27thFloor,OlympicBuilding,No.2ShangbaoRoad,JinghuaCommunity,Lianhua Subdistrict,FutianDistrict,Shenzhen,Guangdong,China 3.Antennamodelname: ECAntenna 4.Antennasize 85mm*3mm 5.AntennaGain:2dBi