2ASNS48PTwo Way Radio

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Shenzhen Retevis Technology Co., Ltd. 7/F, 13-C, Zhonghaixin Science &Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: November 10, 2025 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2ASNS48P Shenzhen Retevis Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Name: Dongfang Shen Title: General Manager

Shenzhen Retevis Technology Co., Ltd. 7/F, 13-C, Zhonghaixin Science &Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: November 10, 2025 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2ASNS48P Shenzhen Retevis Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Name: Dongfang Shen Title: General Manager

Shenzhen Retevis Technology Co., Ltd. 7/F, 13-C, Zhonghaixin Science &Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date:2025-11-10 Ref: Attestation Statements, US agent designation FCC ID: 2ASNS48P FRN: 0028298024 Shenzhen Retevis Technology Co., Ltd. acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment above for which authorization is sought. Contact: Liuye Li Company U.S. agent: RETEVIS INC Physical U.S. address of agent: 1733 E BROOKPORT ST,COVINA,CA 91724,United States FRN of U.S. agent: 0033657701 Email address of U.S. agent: [email protected] Phone of U.S. agent: 626-362-2594 RETEVIS INC acknowledges their obligation to accept service of process on behalf of Shenzhen Retevis Technology Co., Ltd. Shenzhen Retevis Technology Co., Ltd. accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. This acceptance will be in effect till the applicant decides to change the agent of service of process. By signing this form, we confirm the above and that we are aware of the application requirements listed under §2.911(d)(7). Sincerely, Signature Signature Name: Dongfang Shen Name: Liuye LI Titel: Manager Title: Directing Manager Shenzhen Retevis Technology Co., Ltd. RETEVIS INC

Shenzhen Retevis Technology Co., Ltd. 7/F, 13-C, Zhonghaixin Science &Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2025-11-10 Subject; Request for Confidentiality FCC ID: 2ASNS48P To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Parts List Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Dongfang Shen Title: General Manager

Shenzhen Retevis Technology Co., Ltd. 7/F, 13-C, Zhonghaixin Science &Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Letter of Authorization Company: 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 Name: Two Way Radio Model Number(s): RT48H Product Description: Two Way Radio We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Nov. 10, 2025 Name: Dongfang Shen Title: General Manager Company: Shenzhen Retevis Technology Co., Ltd.

Report No.: AGC00319250906AP02 Page 1 of 4 EXTERNAL PHOTOS All View of EUT Top View of EUT Report No.: AGC00319250906AP02 Page 2 of 4 Bottom View of EUT Front View of EUT Report No.: AGC00319250906AP02 Page 3 of 4 Back View of EUT Left View of EUT Report No.: AGC00319250906AP02 Page 4 of 4 Right View of EUT ****************************************End of Report*************************************

FCC ID Label Location 30mm*40mm FCC ID: 2ASNS48P

Report No.: AGC00319250906AP02 Page 1 of 7 INTERNAL PHOTOS Open View-1 of EUT Open View-2 of EUT Report No.: AGC00319250906AP02 Page 2 of 7 Internal View-1 of EUT Internal View-2 of EUT Report No.: AGC00319250906AP02 Page 3 of 7 Internal View-3 of EUT Internal View-4 of EUT UHF Antenna Report No.: AGC00319250906AP02 Page 4 of 7 Internal View-5 of EUT Internal View-6 of EUT Report No.: AGC00319250906AP02 Page 5 of 7 Internal View-7 of EUT Internal View-8 of EUT Report No.: AGC00319250906AP02 Page 6 of 7 Internal View-9 of EUT Internal View-10 of EUT Report No.: AGC00319250906AP02 Page 7 of 7 Battery View of EU ****************************************End of Report*************************************

Page 1 of 18 CALIBRATION DATA PROBE CALIBRATION DATA Page 2 of 18 Page 3 of 18 Page 4 of 18 Page 5 of 18 Page 6 of 18 Page 7 of 18 Page 8 of 18 Page 9 of 18 Page 10 of 18 DAE CALIBRATION DATA Page 11 of 18 Page 12 of 18 Page 13 of 18 DIPOLE CALIBRATION DATA Page 14 of 18 Page 15 of 18 Page 16 of 18 Page 17 of 18 Page 18 of 18

Page 1 of 44 SAR Test Report Report No.: AGC00319250906FH01 FCC ID : 2ASNS48P PRODUCT DESIGNATION : Two Way Radio BRAND NAME : RETEVIS MODEL NAME : RT48H APPLICANT : Shenzhen Retevis Technology Co., Ltd. DATE OF ISSUE : Oct. 17, 2025 STANDARD(S) : IEEE Std. 1528:2013 FCC 47 CFR Part 2§2.1093 IEEE Std C95.1 ™-2019 REPORT VERSION : V1.0 Attestation of Global Compliance(Shenzhen) Co., Ltd. Report No.: AGC00319250906FH01 Page 2 of 44 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / Oct. 17, 2025 Valid Initial Release Report No.: AGC00319250906FH01 Page 3 of 44 Test Report Applicant Name Shenzhen Retevis Technology Co., Ltd. Applicant Address 7/F, 13-C, Zhonghaixin Science &Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Manufacturer Name Shenzhen Retevis Technology Co., Ltd. Manufacturer Address 7/F, 13-C, Zhonghaixin Science &Technology Park, No.12 Ganli 6th Road, Jihua Street, Longgang District, Shenzhen, China Factory Name N/A Factory Address N/A Product Designation Two Way Radio Brand Name RETEVIS Test Model RT48H Series Model N/A Declaration of Difference N/A EUT Voltage DC 3.7V Applicable Standard IEEE Std. 1528:2013 FCC 47 CFR Part 2§2.1093 IEEE Std C95.1 ™-2019 Date of receipt of test item Sep. 10, 2025 Test Date Sep. 19, 2025 Report Template AGCRT- US -PTT/SAR (2021-04-20) Note: The results of testing in this report apply to the product/system which was tested only. Prepared By Bibo Zhang (Project Engineer) Oct. 17, 2025 Reviewed By Jack Gui (Reviewer) Oct. 17, 2025 Approved By Angela Li (Authorized Officer) Oct. 17, 2025 Report No.: AGC00319250906FH01 Page 4 of 44 TABLE OF CONTENTS 1. SUMMARY OF MAXIMUM SAR VALUE ......................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................... 6 2.1. EUT DESCRIPTION......................................................................................................................................... 6 3. SAR MEASUREMENT SYSTEM ........................................................................................................................ 7 3.1. THE DASY5 SYSTEM USED FOR PERFORMING COMPLIANCE TESTS CONSISTS OF FOLLOWING ITEMS .................... 7 3.2. DASY5 E-FIELD PROBE ................................................................................................................................. 8 3.3. DATA ACQUISITION ELECTRONICS DESCRIPTION ............................................................................................... 8 3.4. ROBOT .......................................................................................................................................................... 9 3.5. LIGHT BEAM UNIT .......................................................................................................................................... 9 3.6. DEVICE HOLDER .......................................................................................................................................... 10 3.7. MEASUREMENT SERVER ............................................................................................................................... 10 3.8. PHANTOM ................................................................................................................................................. 11 4. SAR MEASUREMENT PROCEDURE ............................................................................................................ 12 4.1. SPECIFIC ABSORPTION RATE (SAR) .............................................................................................................. 12 4.2. SAR MEASUREMENT PROCEDURE ................................................................................................................ 13 5. TISSUE SIMULATING LIQUID ....................................................................................................................... 15 5.1. THE COMPOSITION OF THE TISSUE SIMULATING LIQUID..................................................................................... 15 5.2. TISSUE DIELECTRIC PARAMETERS FOR HEAD AND BODY PHANTOMS ............................................................... 15 5.3. TISSUE CALIBRATION RESULT ....................................................................................................................... 16 6. SAR SYSTEM CHECK PROCEDURE ........................................................................................................... 17 6.1. SAR SYSTEM CHECK PROCEDURES ............................................................................................................. 17 6.2. SAR SYSTEM CHECK ................................................................................................................................... 18 7. EUT TEST POSITION ...................................................................................................................................... 19 7.1. BODY WORN POSITION ................................................................................................................................ 19 8. SAR EXPOSURE LIMITS ............................................................................................................................... 20 9. TEST FACILITY .............................................................................................................................................. 21 10. TEST EQUIPMENT LIST .............................................................................................................................. 22 11. MEASUREMENT UNCERTAINTY ................................................................................................................ 23 12. POWER MEASUREMENT ..............................................................................…

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装在机壳上调试 （驰尔达RT48H-462兆内置天线） 电气参数ELECTRICALSPECIFICATIONS机械特性MECHANICALSPECIFICATIONS 频率范围462MHz FrequencyRange 输入阻抗50 Impedance 驻波比＜1.5(462MHz) VSWR 增益1.5dBi Gain 极化方式垂直Vertical Polarization 辐射方向全向Omni Radiation 功率容量10W MaximumPowerInput-watts 长度约61mm Height 接头直接焊接 Termination 天线材料镀铜线 RadomeMaterial 天线颜色黄铜色 RadomeColor 未注公差±0.5mm 中铭天线 中铭天线 UHF内置天线

Page 1 of 39 FCC Test Report Report No.: AGC00319250906FR01 FCC ID : 2ASNS48P APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Two Way Radio BRAND NAME : RETEVIS MODEL NAME : RT48H APPLICANT : Shenzhen Retevis Technology Co., Ltd. DATE OF ISSUE : Oct. 20, 2025 STANDARD(S) : FCC Part 95 Subpart B REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC00319250906FR01 Page 2 of 39 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / Oct. 20, 2025 Valid Initial Release Report No.: AGC00319250906FR01 Page 3 of 39 Table of Contents 1. General Information ........................................................................................................................................ 5 2. Product Information ........................................................................................................................................ 6 2.1 Product Technical Description ................................................................................................................... 6 2.2 Test Frequency List ................................................................................................................................... 7 2.3 Related Submittal(S) / Grant (S) ............................................................................................................... 8 2.4 Test Methodology ...................................................................................................................................... 8 2.5 Calculation of Emission Indicators ............................................................................................................ 8 2.6 Special Accessories .................................................................................................................................. 8 2.7 Equipment Modifications ........................................................................................................................... 8 2.8 Antenna Requirement ............................................................................................................................... 9 3. Test Environment .......................................................................................................................................... 10 3.1 Address Of The Test Laboratory ............................................................................................................. 10 3.2 Test Facility .............................................................................................................................................. 10 3.3 Environmental Conditions ....................................................................................................................... 11 3.4 Measurement Uncertainty ....................................................................................................................... 11 3.5 List of Equipment Used ........................................................................................................................... 12 4.System Test Configuration ............................................................................................................................ 13 4.1 EUT Configuration ................................................................................................................................... 13 4.2 EUT Exercise ........................................................................................................................................... 13 4.3 Configuration of Tested System .............................................................................................................. 13 4.4 Equipment Used in Tested System ......................................................................................................... 13 4.5 Summary of Test Results ........................................................................................................................ 14 5. Description of Test Modes ........................................................................................................................... 15 6. Frequency Stability ....................................................................................................................................... 16 6.1 Provisions Applicable .............................................................................................................................. 16 6.2 Measurement Procedure ......................................................................................................................... 16 6.3 Measurement Setup ................................................................................................................................ 16 6.4 Measurement Result ............................................................................................................................... 17 7. 26dB Emission Bandwidth and 99% Occupied Bandwidth ...................................................................... 18 7.1 Provisions Applicable .............................................................................................................................. 18 7.2 Measurement Procedure ......................................................................................................................... 18 7.3 Measurement Setup ................................................................................................................................ 18 7.4 Measurement Results ............................................................................................................................. 19 8. Spurious Radiated Emission ......................................................................................................................... 21 8.1 Provisions Applicable .........................................................................................................................…

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Report No.: AGC00319250906AP01 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC00319250906AP01 Page 2 of 2 CONDUCTED TEST SETUP ****************************************End of Report*************************************