2A3OORA87GMRS Mobile Radio

ShenzhenYsairTechnologyCo.,LTD 2.911(d)(7)USAAgentv1.2 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:ShenzhenYsairTechnologyCo.,LTD Address:Room403,4thFloor,Building4,YunliIntelligentPark,No.3ChangfaMiddle Road,YangmeiCommunity,BantianStreet,LonggangDistrict,Shenzhen ProductName:GMRSMobileRadio FCCID:2A3OORA87 Model(s):RA87 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[ShenzhenYsairTechnologyCo.,LTD](“theapplicant”)designate[RETEVISINC] NOTE1 forthepurposeofacceptingserviceofprocessonbehalfoftheapplicant. Applicantconsent:WeAcknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminated allmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolving theequipment,whicheverislater. ShenzhenYsairTechnologyCo.,LTD 2.911(d)(7)USAAgentv1.2 Agentobligation:WeAcknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,ortheconclusionofanyCommission-relatedadministrativeorjudicial proceedinginvolvingtheequipment,whicheverislater. USAAgent Companyname:RETEVISINC Address:1733EBROOKPORTST COVINA,CA91724UnitedStates FRN:0033657701 ContactName:LIUYELI TelephoneNo:+1（626）3622594 Email:[email protected] Applicant Companyname:ShenzhenYsair TechnologyCo.,LTD Address:Room403,4thFloor,Building4, YunliIntelligentPark,No.3Changfa MiddleRoad,YangmeiCommunity, BantianStreet,LonggangDistrict, Shenzhen FRN:0031641426 ContactName:WeidongShen TelephoneNo:0755-23481953 Email:[email protected] Signature: Title:Director Date:2026-04-22 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess Signature: Title:General Manager Date: 2026-04-22 . Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

ShenzhenYsairTechnologyCo.,LTD 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:ShenzhenYsairTechnologyCo.,LTD Address:Room403,4thFloor,Building4,YunliIntelligentPark,No.3ChangfaMiddleRoad, YangmeiCommunity,BantianStreet,LonggangDistrict,Shenzhen ProductName:GMRSMobileRadio FCCID:2A3OORA87 Model(s):RA87 2.911(d)(5)(i)EquipmentType We,[ShenzhenYsairTechnologyCo.,LTD](“theapplicant”)certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot:  Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules.  Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:WeidongShenDate:2026-04-22 TitleandCompanyname:GeneralManager/ShenzhenYsairTechnologyCo.,LTD 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

ShenzhenYsairTechnologyCo.,LTD 2.911(d)(5)(ii)ApplicantAttestationv1.2 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:ShenzhenYsairTechnologyCo.,LTD Address:Room403,4thFloor,Building4,YunliIntelligentPark,No.3ChangfaMiddleRoad, YangmeiCommunity,BantianStreet,LonggangDistrict,Shenzhen ProductName:GMRSMobileRadio FCCID:2A3OORA87 Model(s):RA87 2.911(d)(5)(ii)Applicantfiling We,[ShenzhenYsairTechnologyCo.,LTD](“theapplicant”)certifythat,asofthedateofthefilingof theapplication,theapplicantisidentified/isnotidentified NOTE1 onthe“CoveredList” NOTE2 , establishedpursuantto §1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:WeidongShenDate:2026-04-22 TitleandCompanyname:GeneralManager/ShenzhenYsairTechnologyCo.,LTD 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

ShenzhenYsairTechnologyCo.,LTD LetterofAuthorization Companyname:ShenzhenYsairTechnologyCo.,LTD Address:Room403,4thFloor,Building4,YunliIntelligentPark,No.3ChangfaMiddle Road,YangmeiCommunity,BantianStreet,LonggangDistrict,Shenzhen ProductName:GMRSMobileRadio FCCID:2A3OORA87 Model(s):RA87 WeauthorizeMiCOMLabsInc,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningtheabovenamedequipment. AnyindividualwithinMiCOMLabsisauthorizedtoactonourbehalfandtakeactionon theapplication. WedeclarethatMiCOMLabsInc,575BoulderCourt,Pleasanton,California94566, USA,isallowedtoforwardallinformationrelatedtotheapprovalprojecttotheFederal CommunicationCommissionandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyMiCOMLabsonourbehalfshallhavethe sameeffectasactsofourown. Name: WeidongShen Date:2026-04-22 TitleandCompanyname:GeneralManager/ShenzhenYsairTechnologyCo.,LTD

ShenzhenYsairTechnologyCo.,LTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-04-22 Subject;RequestforConfidentiality FCCID:2A3OORA87 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram BOM OperationalDescription Tune-upProcedure Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:WeidongShen Title:GeneralManager

TEST REPORT For RF Expose Report No ......................................... : CHTW26045010 Project No ........................................ : SHT2601081701W FCC ID ............................................. : 2A3OORA87 Applicant’s name .............................. : Shenzhen Ysair Technology Co., LTD Address ............................................ : Room 403, 4th Floor, Building 4, Yunli Intelligent Park, No. 3 Changfa Middle Road, Yangmei Community, Bantian Street, Longgang District, Shenzhen Product Name .................................. : GMRS Mobile Radio Trade Mark ....................................... : RETEVIS Model No. ......................................... : RA87 Listed Model(s) ................................ : - Standard........................................... : FCC Part 2 (Section 2.1091) Date of receipt of test sample..........: 2026/1/30 Date of testing.............................: 2026/1/30- 2026/4/20 Date of issue...............................: 2026/4/21 Result ................... ........................: Pass Compiled by (Position+Printed name+Signature) . : File administrator Xiaodong Zhao Supervised by (Position+Printed name+Signature) . : Project Engineer Kiki Kong Approved by (Position+Printed name+Signature) . : RF Manager Xu Yang Testing Laboratory Name.............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................ : Building 7, Baiwang Idea Factory, No.1051, Songbai Road, Yangguang Community, Xili Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test Report Form No. ........................ : R0066 Test Report Form(s) Originator .......... : Shenzhen Huatongwei International Inspection Co., Ltd. Master TRF ........................................ : Dated 2025-07 Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.The test report merely correspond to the test sample.The authenticity of this Test Report and its contents can be verified by contacting the Laboratory, responsible for this Test Report. Report No.: CHTW26045010 Page 2 of 7 Contents 1. TEST STANDARDS AND REPORT VERSION 3 1.1. Test standards 3 1.2. Report version information 3 2. SUMMARY 4 2.1. Client Information 4 2.2. Product Description 4 2.3. Radio Specification Description 4 2.4. Testing Laboratory Information 5 3. RF EXPOSURE 6 Report No.: CHTW26045010 Page 3 of 7 1. TEST STANDARDS AND REPORT VERSION 1.1. Test standards The tests were performed according to following standards: FCC Part 2 (Section 2.1091)- Radiofrequency radiation exposure evaluation: mobile devices. KDB 447498 D04 Interim General RF Exposure Guidance v01- RF Exposure Procedures and Equipment Authorization Policies for Mobile and Portable Devices FCC Part 1 (Section 1.1307)- Actions that may have a significant environmental effect, for which Environmental Assessments (EAs) must be prepared. 1.2. Report version information Revision No. Date of issue Description N/A 2026-04-21 Original Report No.: CHTW26045010 Page 4 of 7 2. SUMMARY 2.1. Client Information Applicant: Shenzhen Ysair Technology Co., LTD Address: Room 403, 4th Floor, Building 4, Yunli Intelligent Park, No. 3 Changfa Middle Road, Yangmei Community, Bantian Street, Longgang District, Shenzhen Manufacturer: Shenzhen Retevis Technology Co., Ltd. Address: 7/F, 13-C, Zhonghaixin Science&Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China 2.2. Product Description Product Name: GMRS Mobile Radio Trade Mark: RETEVIS Model No.: RA87 Listed Model(s): - Power supply: DC 13.8V Hardware version: 6PM7-2010-E Software version: V1.6 2.3. Radio Specification Description Support Frequency Range: 462MHz Main channel: 462.5500, 462.5750, 462.6000, 462.6250, 462.6500, 462.6750, 462.7000, 462.7250MHz 462MHz interstitial channel: 462.5625, 462.5875, 462.6125, 462.6375, 462.6625, 462.6875, 462.7125 MHz 467MHz Main channel: 467.5500, 467.5750, 467.6000, 467.6250, 467.6500, 467.6750, 467.7000, 467.7250MHz Modulation Type: FM Emission Designator: 11K0F3E,16K0F3E Note #1: Please refer to RF report for detailed technical specifications Report No.: CHTW26045010 Page 5 of 7 2.4. Testing Laboratory Information Laboratory Name Shenzhen Huatongwei International Inspection Co., Ltd. Laboratory Location Building 7, Baiwang Idea Factory, No.1051, Songbai Road, Yangguang Community, Xili Subdistrict, Nanshan District, Shenzhen, Guangdong, China Contact information: Tel: 400-963-0755 E-mail: [email protected] http://www.szhtw.com.cn Report No.: CHTW26045010 Page 6 of 7 3. RF EXPOSURE LIMIT ◎ Single transmitter: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 - - f/300 6 1500–100,000 - - 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 - - f/1500 30 1500–100,000 - - 1.0 30 Note: f = frequency in MHz ◎ Simultaneous transmission: Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneously transmitting antennas incorporated in a host device…

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TEST REPORT For RF Report No......................................... : CHTW26045008 Project No ........................................ : SHT2601081701W FCC ID ............................................. : 2A3OORA87 Applicant’s name ............................. : Shenzhen Ysair Technology Co., LTD Address ............................................ : Room 403, 4th Floor, Building 4, Yunli Intelligent Park, No. 3 Changfa Middle Road, Yangmei Community, Bantian Street, Longgang District, Shenzhen Product Name .................................. : GMRS Mobile Radio Trade Mark....................................... : RETEVIS Model No.......................................... : RA87 Listed Model(s) ................................ : - Standard .......................................... : FCC CFR Title 47 Part 95 Subpart E Date of receipt of test sample..........: 2026/1/30 Date of testing.............................: 2026/1/30- 2026/4/20 Date of issue...............................: 2026/4/21 Result ................... ........................: Pass Compiled by (Position+Printed name+Signature) : File administrator Xiaodong Zhao Supervised by (Position+Printed name+Signature) : Project Engineer Kiki Kong Approved by (Position+Printed name+Signature) : RF Manager Xu Yang Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................ : Building 7, Baiwang Idea Factory, No.1051, Songbai Road, Yangguang Community, Xili Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test Report Form No. ........................ : R0054 Test Report Form(s) Originator ......... : Shenzhen Huatongwei International Inspection Co., Ltd. Master TRF ........................................ : Dated 2025-04 Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.The test report merely correspond to the test sample.The authenticity of this Test Report and its contents can be verified by contacting the Laboratory, responsible for this Test Report. Report No.: CHTW26045008 Page 2 of 39 Contents 1. TEST S T AN D AR D S A N D R E P O R T V E R S I ON 3 1.1. Test Standards 3 1.2. Report version 3 2. TEST DESCRIPTION 4 3. SUMMARY 5 3.1. Client Information 5 3.2. Product Description 5 3.3. Radio Specification Description 5 3.4. Testing Laboratory Information 6 4. TEST CONFIGURATION 7 4.1. Test frequency list 7 4.2. Test mode 9 4.3. Support unit used in test configuration and system 9 4.4. Testing environmental condition 10 4.5. Measurement uncertainty 10 4.6. Equipment Used during the Test 11 5. TEST CONDITIONS AND RESULTS 13 5.1. Carrier Output Power (ERP) 13 5.2. 99% Occupied Bandwidth & 26dB Bandwidth 15 5.3. Emission Mask 16 5.4. Modulation Limit 17 5.5. Audio Frequency Response 18 5.6. Audio Low Pass Filter Response 20 5.7. Frequency stability VS Temperature 21 5.8. Frequency stability VS Voltage 22 5.9. Transmit Radiated Spurious Emission 23 6. TEST SETUP PHOTOS 31 7. EXTERANAL AND INTERNAL PHOTOS 33 7.1. External Photos 33 7.2. Internal Photos 36 8. APPENDIX REPORT 39 Report No.: CHTW26045008 Page 3 of 39 1. TEST STAND ARDS AND REPORT VERSION 1.1. Test Standards The tests were performed according to following standards: ‒ FCC CFR Title 47 Part 95 Subpart E: General Mobile Radio Service ‒ FCC Rules Part 2: Frequency allocations and radio treaty matters; General rules and regulations ‒ ANSI C63.26-2013: American National Standard for Compliance Testing of Transmitters Used in Licensed Radio Services 1.2. Report version Revision No. Date of issue Description N/A 2026-04-21 Original Report No.: CHTW26045008 Page 4 of 39 2. TEST DESCRIPTION Report clause Test Items Standard Requirement Result 5.1 Carrier Output Power (ERP) Part 95.1767 Part 2.1046 PASS 5.2 99% Occupied Bandwidth & 26dB bandwidth Part 95.1773 Part 2.1049 PASS 5.3 Emission Mask Part 95.1779 Part 2.1049 PASS 5.4 Modulation Limit Part 95.1775 Part 2.1047 PASS 5.5 Audio Frequency Response Part 95.1775 Part 2.1047 PASS 5.6 Audio Low Pass Filter Response Part 95.1775 Part 2.1047 PASS 5.7 Frequency Stability V.S. Temperature Part 95.1765 Part 2.1055 PASS 5.8 Frequency Stability V.S. Voltage Part 95.1765 Part 2.1055 PASS 5.9 Transmit Radiated Spurious Emission Part 95.1779 Part 2.1051 PASS Note: ‒ The measurement uncertainty is not included in the test result. Report No.: CHTW26045008 Page 5 of 39 3. SUMMARY 3.1. Client Information Applicant: Shenzhen Ysair Technology Co., LTD Address: Room 403, 4th Floor, Building 4, Yunli Intelligent Park, No. 3 Changfa Middle Road, Yangmei Community, Bantian Street, Longgang District, Shenzhen Manufacturer: Shenzhen Retevis Technology Co., Ltd. Address: 7/F, 13-C, Zhonghaixin Science&Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China 3.2. Product Description Main unit information: Product Name: GMRS Mobile Radio Trade Mark: RETEVIS Model No.: RA87 Listed Model(s): - Power supply: DC 13.8V Hardware version: 6PM7-2010-E Software version: V1.6 3.3. Radio Specification Description Support Frequency Range: 462MHz Main channel: 462.5500, 462.5750, 462.6000, 462.6250, 462.6500, 462.6750, 462.7000, 462.7250MHz 462MHz interstitial channel: 462.5625, 462.5875, 462.6125, 462.6375, 462.6625, 462.6875, 462.7125 MHz 467MHz Main channel: 467.5500, 467.5750, 467.6000, 467.6250, 467.6500, 467.6750, 467.7000, 467.7250MHz Modulation Type: FM Emission Designator: 11K0F3E,16K0F3E Report No.: CHTW26045008 Page 6 of 39 3.4. Testing Laboratory Information Laboratory N…

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