2ASNST3SDigital Two Way Radio

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2ASNST3S RT3S We, Applicant Company 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 Phone: +86-755-23481953 certify that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. or any of ist successors and assignees. We certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-04-17 Signature Date Name / Title: Dongfang Shen / Manager 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 Phone: +86-755-23481953 Fax: N/A E-Mail: [email protected]

Due Diligence Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern FCC ID Model name 2ASNST3S RT3S Pursuant to KDB 986446 D01 Covered Equipment Guidance the evaluation of the product above shows compliance for the following reasons: Compliance Evaluation process Results Inherent compliance The chipset(s) used is not capable of running the cybersecurity and/or anti-virus software Compliance The memory used does not allow the running the cybersecurity and/or anti-virus software Compliance The storage capacity does not allow the running the cybersecurity and/or anti-virus software Compliance The operating system used is not capable of running the cybersecurity and/or anti-virus software Compliance No inherent compliance Based on software bill of material Based on scan for running software on the device Based on filesystem scan for cybersecurity and/or anti-virus software The equipment for which authorization is sought complies with the rules and fulfils the requirements as detailed in the above mentioned KDB. Evaluation performed by Company Name: Shenzhen LCS Compliance Testing Laboratory Ltd. Contact Name: Martion Lee Address: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Phone: +86-755-82591330 Email: [email protected] Signature: Date: 2026-04-21

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2ASNST3S RT3S For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • Internal Photos • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-04-17 Signature Date Name / Title: Dongfang Shen / Manager 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 Phone: +86-755-23481953 Fax: N/A E-Mail: [email protected]

Short Term Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and in accordance with the FCC Public notice dated June 15, 2004 (DA 04-1705), we request short term confidentiality prior to marketing the device for the documentation of the following products: FCC ID Model name 2ASNST3S RT3S For the products listed above, we request short term confidentiality for all applicable exhibits as there are: • External photos • Test setup photos • User manual The above listed exhibits contain business sensitive information which we wish to keep confidential until the actual marketing of our device, that is planned for: Short term confidentiality release date: <max 180 after issue of grant> If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-04-17 Signature Date Name / Title: Dongfang Shen / Manager 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 Phone: +86-755-23481953 Fax: N/A E-Mail: [email protected]

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 Dear Sir/Madam, FEDERAL COIMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Declaration of compliance to the requirements of §15.121 FCC ID: 2ASNST3S We declare that, this scanning receiver is incapable of operating (tuning), or readily being altered by the users to operate, within the frequency bands allocated to the Cellular Radio telephone Service in part 22 of this chapter (cellular telephone bands). This device will not be able to receive transmissions in the cellular telephone bands by means of clipping the leads of, or installing, a simple component such as a diode, resistor or jumperwire; replacing a plug-in semiconductor chip; or programming a semiconductor chip using special access codes or an external device, such as a personal computer. This device is also incapable of converting digital cellular communication transmissions to analog voice audio. This device is designed so that the tuning, control and filtering circuitry is inaccessible. Any attempts to modify the equipment to receive transmissions from the Cellular Radiotelephone Service will render the receiver inoperable. This scannina receiver rejects any sianals from the Cellular Radiotelephone Service frequency bands that are 38 dB or lower based upon a 12 dB SlNAD measurement. We are aware that the modification of this device to receive transmissions from Cellular Radiotelephone Service frequency bands will be considered to constitute manufacture of such equipment. This includes any individual, individuals, entity or organization that modifies one ol more scanners. Any modification to receive transmissions from the Cellular Radiotelephone Service frequency bands voids the certification of the scanning receiver, regardless of the date of manufacture of the original unit. Signature: Date: 2026-4-21 Name: Dongfang Shen Title: Manager

Page 1 of 1 FCC ID: 2ASNST3S LABEL AND LOCATION Label 1 Label 2 (Size: L2.96cm x W 3.96cm) Label 1 Location Label 2 Location

Page 1 of 32 FCCID: 2ASNST3S Report No.: LCSC04146018E Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi , Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC TEST REPORT Shenzhen Retevis Technology Co., Ltd. Digital Two Way Radio Test Model: RT3S Prepared for : 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 Prepared by : Guangzhou LCS Compliance Testing Laboratory Ltd. Address : No.44-1,Qianfeng North Road, Shiqi , Panyu District, Guangzhou, Guangdong, China Tel : (+86) 020-39166689 Fax : (+86) 020-39166619 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : April 15, 2026 Number of tested samples : 2 Sample No. : C260416001-1, C260416001-2 Serial number : Prototype Date of Test : April 15, 2026 ~ April 21, 2026 Date of Report : April 21, 2026 Page 2 of 32 FCCID: 2ASNST3S Report No.: LCSC04146018E Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi , Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC TEST REPORT FCC 47 CFR Part 15 Subpart B, Class B, ANSI C63.4a-2017(Amendment to ANSI C63.4-2014) Report Reference No. ......... : LCSC04146018E Date Of Issue ......................... : April 21, 2026 Testing Laboratory Name .... : Guangzhou LCS Compliance Testing Laboratory Ltd. Address .................................. : No.44-1,Qianfeng North Road, Shiqi , Panyu District, Guangzhou, Guangdong, China Testing Location/ Procedure ... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ 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 Test Specification Standard ................................. : FCC 47 CFR Part 15 Subpart B, Class B, ANSI C63.4a-2017(Amendment to ANSI C63.4-2014) Test Report Form No. ............. : TRF-4-E-010 A/0 TRF Originator ........................ : Guangzhou LCS Compliance Testing Laboratory Ltd. Master TRF ............................. : Dated 2011-03 Guangzhou LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Guangzhou LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Guangzhou LCS Compliance Testing Laboratory 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. Test Item Description. .......... : Digital Two Way Radio Trade Mark : RETEVIS Test Model ............................ : RT3S Ratings ................................... : Please Refer to Page 7 Result ................................... : PASS Compiled by: Reviewed by: Approved by: Lifeng Le/ Administrator Justin Zhu/ Technique Director Gavin Liang/ Manager Page 3 of 32 FCCID: 2ASNST3S Report No.: LCSC04146018E Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi , Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC TEST REPORT Test Result according to the standards on page 6: PASS The 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. Test Report No. : LCSC04146018E April 21, 2026 Date of issue Test Model ........................ : RT3S EUT.................................... : Digital Two Way Radio 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 Telephone.......................... : / Fax..................................... : / 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 Telephone.......................... : Fax..................................... : Factory.............................. : 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 Telephone.......................... : / Fax..................................... : / Page 4 of 32 FCCID: 2ASNST3S Report No.: LCSC04146018E Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi , Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Revision History Report Version Issue Date Revision Content Revised By 000 April 21, 2026 Initial Issue --- Page 5 of 32 FCCID: 2ASNST3S Report No.: LCSC04146018E Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi , Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com TABLE OF CONTENTS Test Report Description Page 1. SUMMARY OF STANDARDS AND RESULTS .............................................................................. 6 1.1. Description of Standards and Results ................................................................................................ 6 2. GENERAL INFORMATION .......................................................................…

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