2ASNSH777DTWO WAY RADIO

ShenzhenRetevisTechnologyCo.,Ltd. To:FederalCommunicationsCommissionDate:2025/8/25 7435OaklandMillsRoad Columbia,MD21046 USA Attestation Section2.911(d)(5)(i)andSection2.911(d)(5)(ii) (KDB986446D01CoveredEquipment) Section2.911(d)(5)(i) ShenzhenRetevisTechnologyCo.,Ltd.(“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceiving anequipmentauthorizationpursuanttosection2.903oftheFCCrules. Section2.911(d)(5)(ii) ShenzhenRetevisTechnologyCo.,Ltd.(“theapplicant”)certifiesthat,asofthedate ofthefilingoftheapplication,theapplicant[isnot]identifiedontheCoveredList(as aspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentity producing“covered”equipment. TypeofEquipmentsubjecttoFCCCertification:TWOWAYRADIO FCCID:2ASNSH777D Ifyouhaveanyquestions,pleasefeelfreetocontactme. ContactPerson:DongfangShen PositionintheCompany:Manager DateofSignature:2025/8/25 ___________________________ Signatory (signatureoftheapplicant)

ShenzhenRetevisTechnologyCo.,Ltd. PHOENIXTESTLABGmbHDate:03September2025 ProductCertification Königswinkel10 D32825Blomberg FCCID:2ASNSH777D ToWhomItMayConcerns, Pursuanttosections0.457(d)and0.459ofCFR47andtoavoidprematurereleaseof sensitiveinformationpriortomarketingorreleaseoftheproducttothepublic,wehereby requestlong-termconfidentialtreatmentofinformationaccompanyingthisapplicationas outlinedbelow: ☒Schematics☐PartsList ☒BlockDiagram☐Tune-UpInfo ☒OperationalDescription Inadditionweherebyrequestthefollowingexhibitscontainedinthisapplicationtobe temporarily(short-termconfidentiality)withheldfromthepublicdisclosure ☒foraninitialperiodof180days☐until:☐not applicable ☒ExternalPhotos☒TestSetupPhotos ☒InternalPhotos☒UsersManual Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesemattersmightbeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. Theapplicantunderstandsthatpursuanttorule0.457(d),disclosureofthisapplicationand allaccompanyingdocumentationwillnotbemadebeforethedateoftheGRANTforthis application. Ifyouhaveanyquestions,pleasefeelfreetocontactme. Yourssincerely, Signatory PrintedName:DongfangShen Position:Manager

LABELANDLOCATION (Size:L3.0cmxW3.0cm) LabelLocation TWOWAYRADIO Model:H777D FCCID:2ASNSH777D IC:23137-H777D

Page 1 of 60 Report No.: AiTSZ-250729039FW2 FCC SAR EVALUATION REPORT In accordance with the requirements of FCC 47 CFR Part 2(2.1093) and IEEE Std 1528-2013 Product Name: TWO WAY RADIO Model No.: H777D Serial Model: N/A Brand Name: RETEVIS Report No.: AiTSZ-250729039FW2 FCC ID: 2ASNSH777D Prepared for Shenzhen Retevis Technology Co., Ltd 7/F, 13-C, Zhonghaixin Science&Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Prepared by Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Page 2 of 60 Report No.: AiTSZ-250729039FW2 TEST RESULT CERTIFICATION Applicant’s name..................: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 Manufacturer's Name...........: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 Product description Product name.........................: TWO WAY RADIO Trademark .............................:RETEVIS Model and/or type reference ..: H777D Serial Model............................: N/A Standards..............................: FCC 47 CFR Part 2(2.1093) IEEE Std 1528-2013 Published RF exposure KDB procedures This device described above has been tested by Guangdong Asia Hongke Test Technology Limited. In accordance with the measurement methods and procedures specified in IEEE Std 1528-2013 and KDB 865664 D01.Testing has shown that this device is capable of compliance with localized specific absorption rate (SAR) specified in FCC 47 CFR Part 2(2.1093). The test results in this report apply only to the tested sample of the stated device/equipment. Other similar device/equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited, this document may be altered or revised by Guangdong Asia Hongke Test Technology Limited, personal only, and shall be noted in the revision of the document. Test Sample Number ..............................: AiTSZ-250729039-1 Date of Test Date (s) of performance of tests .............:Aug. 06, 2025 Date of Issue...........................................:Aug. 08, 2025 Test Result ..............................................:Pass Reviewed by: Approved by: Ken Zou Jack Li Page 3 of 60 Report No.: AiTSZ-250729039FW2 ※ ※ Revision History ※ ※ REV.DESCRIPTIONISSUED DATEREMARK Rev.1.0Initial Test Report ReleaseAug. 08, 2025Jack Li Page 4 of 60 Report No.: AiTSZ-250729039FW2 TABLE OF CONTENTS 1.General Information............................................................................................5 1.1.RF exposure limits....................................................................................5 1.2.Statement of Compliance........................................................................6 1.3.EUT Description.......................................................................................7 1.4.Test specification(s)..................................................................................8 1.5.Ambient Condition...................................................................................8 1.6.Test Facility...............................................................................................8 2.SAR Measurement System...................................................................................9 2.1.SATIMO SAR Measurement Set-up Diagram...........................................9 2.2.Robot.....................................................................................................10 2.3.Probe......................................................................................................11 2.3.1.E-Field Probe Calibration.................................................................11 2.4.Phantoms...............................................................................................12 2.5.Technical Data........................................................................................13 2.6.Device Holder.........................................................................................14 2.7.Test Equipment List................................................................................15 3.SAR Measurement Procedures..........................................................................17 3.1.Power Reference....................................................................................17 3.2.Area scan & Zoom scan..........................................................................17 3.3.Description of interpolation/extrapolation scheme..............................19 3.4.Volumetric Scan.....................................................................................19 3.5.Power Drift.............................................................................................19 4.System Verification Procedure...........................................................................20 4.1.Tissue Verification..................................................................................20 4.1.1.Tissue Dielectric Parameter Check Results......................................21 4.2.System Verification Procedure..............................................................22 4.2.1.System Verification Results.............................................................23 5.SAR measurement variabilit...............................................................................24 6.SAR Measurement Uncertainty......................................................…

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Page 1 of 30 Report No.: AiTSZ-250729039FW1 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. TEST REPORT Product Name:TWO WAY RADIO Brand Name:RETEVIS Model:H777D Series Model:N/A FCC ID:2ASNSH777D Applicant: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 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 Standard(s): FCC CFR Title 47 Part 95 RSS-210 Issue 11 Date of Receipt:July 29, 2025 Date of Test:July 29, 2025~ Aug. 12, 2025 Issued Date:Aug. 13, 2025 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 30 Report No.: AiTSZ-250729039FW1 Report Revise Record Report VersionIssued DateNotes M1Aug. 13, 2025Initial Release Page 3 of 30 Report No.: AiTSZ-250729039FW1 Contents 1TEST SUMMARY......................................................................................................................................................4 1.1TEST STANDARDS.........................................................................................................................................................4 1.2TEST SUMMARY...........................................................................................................................................................4 1.3TEST FACILITY..............................................................................................................................................................5 1.4MEASUREMENT UNCERTAINTY........................................................................................................................................5 2GENERAL INFORMATION........................................................................................................................................6 2.1ENVIRONMENTAL CONDITIONS........................................................................................................................................6 2.2GENERAL DESCRIPTION OF EUT......................................................................................................................................6 2.3DESCRIPTION OF TEST MODES AND TEST FREQUENCY.........................................................................................................6 2.4SPECIAL ACCESSORIES...................................................................................................................................................7 2.5EQUIPMENT LIST FOR THE TEST.......................................................................................................................................7 3TEST CONDITIONS AND RESULTS.............................................................................................................................9 3.1MAXIMUM TRANSMITTER POWER...................................................................................................................................9 3.2OCCUPIED BANDWIDTH AND EMISSION MASK.................................................................................................................12 3.3MODULATION CHARACTERISTIC....................................................................................................................................16 3.4FREQUENCY STABILITY.................................................................................................................................................24 3.5TRANSMITTER RADIATED SPURIOUS EMISSION.................................................................................................................27 4TEST SETUP PHOTOS OF THE EUT..........................................................................................................................30 5PHOTOS OF THE EUT.............................................................................................................................................31 Page 4 of 30 Report No.: AiTSZ-250729039FW1 1TEST SUMMARY 1.1Test Standards The tests were performed according to following standards: FCC Part 2: FREQUENCY ALLOCA-TIONS AND RADIO TREATY MAT-TERS; GENERAL RULES AND REG-ULATIONS FCC Rules Part 95: PERSONAL RADIO SERVICES. ANSI C63.10: 2013: American National Standard for Testing Unlicensed Wireless Devices ANSI C63.26:2015: American National Standard of procedures for compliance testing of transmitters used in licensed radio services. RSS-Gen Issue 5: General Requirements for Compliance of Radio Apparatus RSS-210 Issue 11: Licence-exempt Radio Apparatus (All Frequency Bands): Category I Equipment 1.2Test Summary Description of Test ItemStandard clauseVerdict Maximum Transmitter Power FCC Part 95.567 RSS-210 E.1.5 PASS Modulation Characteristic FCC Part 2.1047 FCC Part 95.575 RSS-210 E.1.3 RSS-210 E.1.7 PASS Occupied Bandwidth FCC Part 2.1049 FCC Part 95.573 RSS-210 E.1.4 PAS…

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