2BBPLTBRTVNTPNRETRO WIRELESS PHONE/SPEAKER

Double Sided 125g 5V power button increase decrease hold In the music mode, the hands-free speaker of the device can be used to play audio. When there is an incoming call, or when the hands-free mode is entered or the handle is picked up, the audio playback will pause. To continue playing the audio, manual operation on the connected external device is required. The volume can be adjusted through the connected external device, or via the * key or # key. Press the hands-free button to enter the hands-free call mode. Press the corresponding buttons to dial; Once the call is connected, hands-free communication can be carried out. During the call, pressing the hands-free button again can end the current call. If the handset is picked up during the call, it will enter the handset call mode; Pick up the handset to enter the handset call mode. Dial correctly, and once the call is connected, you can enter the call state. During the call, placing the handset on-hook will end the call. If the hands-free button is pressed during the call, it will switch to the hands-free call mode; Even if the handset is put back on the phone base, the call can still continue. Pressing the hands-free button again will end the call. After pressing the hands-free button or picking up the handset, press the redial key to access the last record in the redial call log.  Turn on the speaker Press and hold the # key to switch the ringtone Bluetooth Pairing:After tuming on the device, tum on the Bluetooth search of the mobilephone, click the Bluetooth pairing name: "Throwback Phone" to connect; If the handset is put down at this time (handset on-hook), the call will end. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. FCC WARNING STATEMENT

Rev 1/26/2023 TRUSTSTONE GROUP, LLC Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-07-2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BBPLTBRTVNTPN [TRUSTSTONE GROUP, LLC] certifies 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. [TRUSTSTONE GROUP, LLC] certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Applicant signature) (Applicant printed name) Marc Faham Rev 1/26/2023 TRUSTSTONE GROUP, LLC Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-07-2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BBPLTBRTVNTPN [TRUSTSTONE GROUP, LLC] ce8rtifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Marc Faham

TRUSTSTONE GROUP, LLC U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: May 7, 2026 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BBPLTBRTVNTPN TRUSTSTONE GROUP, LLC (“the applicant”) certifies that, as of the date of the filing of the application, TRUSTSTONE GROUP, LLC (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. TRUSTSTONE GROUP, LLC ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: TRUSTSTONE GROUP, LLC FRN: 0033900465 Address: 1359 Broadway, 3rd Floor New York NY 10018 Signature: Contact Person: Marc Faham Tel: 9175335333 Email: [email protected] Applicant Company Name: TRUSTSTONE GROUP, LLC FRN: 0033900465 Address: 1359 Broadway, 3rd Floor New York NY 10018 Signature: Contact Person: Marc Faham Tel: 9175335333 Email: [email protected]

TRUSTSTONE GROUP, LLC Date: May 7, 2026 Product Model Number: TB-RTVNTPH FCC ID: 2BBPLTBRTVNTPN To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:  Testing  Approval applications and procedures We declare that QAI Laboratories Ltd. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. By: Marc Faham Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: 9175335333 On behalf of: TRUSTSTONE GROUP, LLC

Shenzhen Lihuosheng Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: May 9, 2026 Subject; Request for Confidentiality FCC ID: 2BBPLTBRTVNTPN 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 Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices 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: Marc Faham Title: Manager

TRUSTSTONE GROUP, LLC 1359 Broadway, 3rd Floor New York NY 10018 Model Difference Statement DATE: May 7, 2026 Product Model Number: TB-RTVNTPH FCC ID: 2BBPLTBRTVNTPN Dear Sir/Madam, Added models TB-RTVNTPH-CRM, TB-RTVNTPH-BLK, RTVNTPH-BLU, TB-RTVNTPH-BLS basis of the original product TB-RTVNTPH The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, declared by the manufacturer. Sincerely, Name: Marc Faham Title: Manager Company name: TRUSTSTONE GROUP, LLC Address: 1359 Broadway, 3rd Floor New York NY 10018

Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report Annex A. EUT External Photos Model : TB-RTVNTPH EUT View 1 EUT View 2 Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT View 3 EUT View 4 Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT View 5 EUT View 6 Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT View 7

Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report Annex D. Label and Inf ormation FCC Label Sample Label Size: 3cm*1.5cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report Annex B. EUT Internal Photos EUT Internal View 1 EUT Internal View 2 Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT Internal View 3 EUT Internal View 4 PCB ANT Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT Internal View 5 EUT Internal View 6 Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT Internal View 7 EUT Internal View 8 Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT Internal View 9 EUT Internal View 10 Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report EUT Internal View 11

FCC ID: 2BBPLTBRTVNTPN RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR, where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. For BR+EDR Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit 1.88 1(±1) 2 1.58 2480 5 0.4976 3.0 So a SAR test is not required

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 15.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) No. 333, Kexing Road, Xiangzhou District, Zhuhai City Address ANT Type： PCB ANT Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Report No: SSP26040391-1E FCC Test Report Page 1 of 51 FCC TEST REPORT FCC ID: 2BBPLTBRTVNTPN Report No. : SSP26040391-1E Applicant : TRUSTSTONE GROUP, LLC Product Name : RETRO WIRELESS PHONE/SPEAKER Model Name : TB-RTVNTPH Test Standard : FCC Part 15.247 Date of Issue : 2026-05-07 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP26040391-1E FCC Test Report Page 2 of 51 Test Report Basic Information Applicant..................................: TRUSTSTONE GROUP, LLC Address of Applicant...............: 1359 Broadway, 3rd Floor New York NY 10018 Manufacturer..........................: TRUSTSTONE GROUP, LLC Address of Manufacturer........: 1359 Broadway, 3rd Floor New York NY 10018 Product Name.........................: RETRO WIRELESS PHONE/SPEAKER Brand Name.............................: THROWBACK Main Model..............................: TB-RTVNTPH Series Models..........................: TB-RTVNTPH-CRM, TB-RTVNTPH-BLK, RTVNTPH-BLU, TB-RTVNTPH-BLS Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C6͵.ͳͲ-2020 Date of Test .............................: 2026-04-16 to 2026-04-25 Test Result...............................: PASS Tested By ................................: (Tate Chen) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP26040391-1E FCC Test Report Page 3 of 51 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................... 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results .......................................................................................................................................... 22 7. Frequency Hopping System .....................................................................…

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Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View Below 1GHz Report No: SSP26040391-1E FCC ID: 2BBPLTBRTVNTPN Annex of Test Report Radiated Emission Test View Above 1GHz