2A3F2-BTA-606.0 Bluetooth Adapter

Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Apr. 27, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2A3F2-BTA-60 Shenzhen lianhongxin Industrial 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, Applicant Signature Printed Name: Taihui Lai Title: Manager Address: Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Tel.: 86075523696560 Email: [email protected]

Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Apr. 27, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2A3F2-BTA-60 Product Name: 6.0 Bluetooth Adapter This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Taihui Lai Title: Manager Address: Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Tel.: 86075523696560 Email: [email protected] Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2026-04-21 U.S. Agent Designation Shenzhen lianhongxin Industrial 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 for which authorization is sought (FCC ID: 2A3F2-BTA-60): Name and company of U.S. agent: Kingstar Promotion Inc Physical U.S. address of agent: 18351 colima Road ste 585 Rowland Heights, California,91748, United States of America FRN of U.S. agent: 0037039153 Email address of U.S. agent: [email protected] Telephone No. of U.S. agent (571)550-5724 Kingstar Promotion Inc acknowledges their obligation to accept service of process on behalf of Shenzhen lianhongxin Industrial Co., Ltd Shenzhen lianhongxin Industrial Co., Ltd with the FRN [0031536071] 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Taihui Lai Manager Shenzhen lianhongxin Industrial Co., Ltd Signature Rick Liu PM Kingstar Promotion Inc 48_[model] US_Agent_2.911(d)(7) - U, V05

Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Date: 2026/4/27 Dear Sir/Madam, We, Shenzhen lianhongxin Industrial Co., Ltd, Hereby declares the following statement, PCB board, circuit, structure and internal of these model(s) are the same, Only model name is different for these model: Product name: 6.0 Bluetooth Adapter FCC ID: 2A3F2-BTA-60 Model no.: BTA-60, BT6.0, BT603, BT601 Sincerely, Name/Title： Taihui Lai / Manager Company: Shenzhen lianhongxin Industrial Co., Ltd Address: Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Phone: 86075523696560 Fax: 86075523696560 E-Mail: [email protected]

Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China April 27, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2A3F2-BTA-60 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below : ⎯ Block Diagram ⎯ Schematics ⎯ Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of 45 days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired. ⎯ User Manual ⎯ Internal Photos Sincerely, Title: Manager Address: Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Tel.: 86075523696560 Email: [email protected]

Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China April 27, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2A3F2-BTA-60 I, the undersigned, hereby authorize Shenzhen Tongzhou Testing Co.,Ltd. to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by Shenzhen Tongzhou Testing Co.,Ltd. shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with Shenzhen lianhongxin Industrial Co., Ltd. We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, Taihui Lai Manager Tel: 86075523696560 Fax: 86075523696560 Email: [email protected]

Report No.: TZ0028260306PH02 Page 1 of 3 External Photographs of EUT External Photo 1 External Photo 2 Report No.: TZ0028260306PH02 Page 2 of 3 External Photo 3 External Photo 4 Report No.: TZ0028260306PH02 Page 3 of 3 External Photo 5 External Photo 6

The size of the label is 30mm*25mm with White forecolor. The size of the logo is 5mm*5mm. Label Location FCC ID: 2A3F2-BTA-60

FCC ID: 2A3F2-BTA-60 Page 1 of 2 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). FCC ID: 2A3F2-BTA-60 Page 2 of 2 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Results BLE RF Exposure at Separation distance (cm): 0.5 Mode Antenna Frequency [MHz] Conducted Power [dBm] Manufacturing tolerance Antenna Gain [dBi] Max of ERP and Conducted Power including Tune Up SAR- based exemption threshold Pth [mW] Target Power [dBm] Tolerance ±[dB] [dBm] [mW] BLE_1M Ant1 2402 1.07 0.5 1 3.29 2.64 1.84 2.79 BLE_1M Ant1 2440 -0.42 -1 1 3.29 1.14 1.30 2.75 BLE_1M Ant1 2480 -0.1 -0.5 1 3.29 1.64 1.46 2.72 BLE_2M Ant1 2402 0.07 -0.5 1 3.29 1.64 1.46 2.79 BLE_2M Ant1 2440 -0.71 -1 1 3.29 1.14 1.30 2.75 BLE_2M Ant1 2480 -0.83 -1.5 1 3.29 0.64 1.16 2.72 BT RF Exposure at Separation distance (cm): 0.5 Mode Antenna Frequency [MHz] Conducted Power [dBm] Manufacturing tolerance Antenna Gain [dBi] Max of ERP and Conducted Power including Tune Up SAR- based exemption threshold Pth [mW] Target Power [dBm] Tolerance ±[dB] [dBm] [mW] DH5 Ant1 2402 0.09 -0.5 1 3.29 1.64 1.46 2.79 DH5 Ant1 2441 -0.29 -1 1 3.29 1.14 1.30 2.75 DH5 Ant1 2480 0.08 -0.5 1 3.29 1.64 1.46 2.72 2DH5 Ant1 2402 -0.1 -0.5 1 3.29 1.64 1.46 2.79 2DH5 Ant1 2441 -1.92 -2.5 1 3.29 -0.36 0.92 2.75 2DH5 Ant1 2480 -1.93 -2.5 1 3.29 -0.36 0.92 2.72 3DH5 Ant1 2402 0.57 0 1 3.29 2.14 1.64 2.79 3DH5 Ant1 2441 -0.91 -1.5 1 3.29 0.64 1.16 2.75 3DH5 Ant1 2480 -1.35 -2 1 3.29 0.14 1.03 2.72 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The Maximum Erp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

Acknowledgement SPECIFICATIONFORAPPROVAL Name:BT 2.4GHzantenna ItemNo:PCB antennaCustomerName:She- nzhenLianhongxinIndustrialCo., Ltd. Company stamp: drawing Customerapprove MADECHECKEDAPPROVED QIU DATE:2026.3.05DATE 1Specifications Figure 1 External View of the PCB Antenna Figure 2BT StandingWave Ratio/SMITHFigure Figure 6: BT StandingWave Ratio The reportprimarilyprovidestest resultsfor the electrical performanceparametersof the BT-V 2.0 antenna.Ante - nna: BT 2.4/GHzsurface-mountedantenna(as shownin Figure1 below). Frequency （MHz） 24002500 VSWR 1.11.7 2.ElectricalPerformance 2.1ThematchingcircuitfortheBTantenna Thematchingcircuitforthisprojectisprovidedbythe customer. Figure3OTAMicrowaveAnechoicChamber 1 3 RFmodule 2 ItemNumber 12 3 4 BTthebest 3NH NC 1.5 PF 0R Lineimpedance 50EuroSet 4 2.3TestoftheStandingWaveRatio(VSWR) 2.3.1.TestSettings ThesequentialconnectionsfortheSWRtestsetupareasfollows:anAgilentE5071B NetworkAnalyzer®,a50-ohmcoaxialcable,anda120-metercable. CopperTube®TestingJig Treatmentofthetestfixture:ArigidcableconnectstheSMA-Jconnectorfromthe50-ohm testpointontheflatPCBantennatothesleeve. Thecoppertubeofthechokecoilisconnected,followedbysequentialconnectionstoother components. Figure4:3DEffectGainMap

Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 1 of 33 Appendix Test Data for BLE (Conducted Measurement) Product Name: 6.0 Bluetooth Adapter Trade Mark: / Test Model: BTA-60 FCC ID: 2A3F2-BTA-60 Environmental Conditions Temperature: 23.5°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Max Zhang NOTE N/A Appendix A: DTS Bandwidth Test Result Test Mode Antenna Frequency [MHz] DTS BW [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict BLE_1M Ant1 2402 0.652 2401.672 2402.324 0.5 PASS BLE_1M Ant1 2440 0.620 2439.664 2440.284 0.5 PASS BLE_1M Ant1 2480 0.660 2479.664 2480.324 0.5 PASS BLE_2M Ant1 2402 1.144 2401.420 2402.564 0.5 PASS BLE_2M Ant1 2440 0.972 2439.424 2440.396 0.5 PASS BLE_2M Ant1 2480 1.076 2479.420 2480.496 0.5 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 2 of 33 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 3 of 33 BLE_1M-Ant1-2480-PASS BLE_2M-Ant1-2402-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 4 of 33 BLE_2M-Ant1-2440-PASS BLE_2M-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 5 of 33 Appendix B: Occupied Channel Bandwidth Test Result Test Mode Antenna Frequency [MHz] OCB [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict BLE_1M Ant1 2402 1.0369 2401.4813 2402.5182 --- --- BLE_1M Ant1 2440 1.0417 2439.4822 2440.5239 --- --- BLE_1M Ant1 2480 1.0469 2479.4755 2480.5224 --- --- BLE_2M Ant1 2402 2.0664 2400.9786 2403.0450 --- --- BLE_2M Ant1 2440 2.0893 2438.9671 2441.0564 --- --- BLE_2M Ant1 2480 2.0806 2478.9739 2481.0545 --- --- Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 6 of 33 Test Graphs BLE_1M-Ant1-2402 BLE_1M-Ant1-2440 Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 7 of 33 BLE_1M-Ant1-2480 BLE_2M-Ant1-2402 Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 8 of 33 BLE_2M-Ant1-2440 BLE_2M-Ant1-2480 Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 9 of 33 Appendix C: Maximum peak conducted output power Test Result Peak Test Mode Antenna Frequency [MHz] Conducted Peak Power [dBm] Conducted Limit [dBm] Verdict BLE_1M Ant1 2402 1.07 ≤30 PASS BLE_1M Ant1 2440 -0.42 ≤30 PASS BLE_1M Ant1 2480 -0.10 ≤30 PASS BLE_2M Ant1 2402 0.07 ≤30 PASS BLE_2M Ant1 2440 -0.71 ≤30 PASS BLE_2M Ant1 2480 -0.83 ≤30 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 10 of 33 Test Graphs Peak BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 11 of 33 BLE_1M-Ant1-2480-PASS BLE_2M-Ant1-2402-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 12 of 33 BLE_2M-Ant1-2440-PASS BLE_2M-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 13 of 33 Appendix D: Maximum peak power spectral density Test Result Test Mode Antenna Frequency [MHz] Result [dBm/3kHz] Limit [dBm/3kHz] Verdict BLE_1M Ant1 2402 -14.23 ≤8.00 PASS BLE_1M Ant1 2440 -17.12 ≤8.00 PASS BLE_1M Ant1 2480 -15.31 ≤8.00 PASS BLE_2M Ant1 2402 -17.69 ≤8.00 PASS BLE_2M Ant1 2440 -17.74 ≤8.00 PASS BLE_2M Ant1 2480 -18.89 ≤8.00 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 14 of 33 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 15 of 33 BLE_1M-Ant1-2480-PASS BLE_2M-Ant1-2402-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 16 of 33 BLE_2M-Ant1-2440-PASS BLE_2M-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 17 of 33 Appendix E: Band edge measurements Test Result Test Mode Antenna Ch. Name Frequency [MHz] Ref. Level [dBm] Result [dBm] Limit [dBm] Verdict BLE_1M Ant1 Low 2402 0.55 -49.43 ≤-19.45 PASS BLE_1M Ant1 High 2480 -0.36 -38.61 ≤-20.36 PASS BLE_2M Ant1 Low 2402 -0.37 -32.43 ≤-20.37 PASS BLE_2M Ant1 High 2480 -1.94 -37.89 ≤-21.94 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 18 of 33 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 19 of 33 BLE_2M-Ant1-2402-PASS BLE_2M-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 20 of 33 Appendix F: Conducted Spurious Emission Test Result Test Mode Antenna Frequency [MHz] Freq. Range [MHz] Ref. Level [dBm] Result [dBm] Limit [dBm] Verdict BLE_1M Ant1 2402 0~Reference -0.14 -0.14 --- PASS BLE_1M Ant1 2402 30~1000 -0.14 -63.38 ≤-20.14 PASS BLE_1M Ant1 2402 1000~26500 -0.14 -37.14 ≤-20.14 PASS BLE_1M Ant1 2440 0~Reference -0.85 -0.85 --- PASS BLE_1M Ant1 2440 30~1000 -0.85 -62.32 ≤-20.85 PASS BLE_1M Ant1 2440 1000~26500 -0.85 -37.84 ≤-20.85 PASS BLE_1M Ant1 2480 0~Reference -0.72 -0.72 --- PASS BLE_1M Ant1 2480 30~1000 -0.72 -62.17 ≤-20.72 PASS BLE_1M Ant1 2480 1000~26500 -0.72 -37.85 ≤-20.72 PASS BLE_2M Ant1 2402 0~Reference -0.38 -0.38 --- PASS BLE_2M Ant1 2402 30~1000 -0.38 -62.38 ≤-20.38 PASS BLE_2M Ant1 2402 1000~26500 -0.38 -37.37 ≤-20.38 PASS BLE_2M Ant1 2440 0~Reference -1.57 -1.57 --- PASS BLE_2M Ant1 2440 30~1000 -1.57 -63.15 ≤-21.57 PASS BLE_2M Ant1 2440 1000~26500 -1.57 -37.38 ≤-21.57 PASS BLE_2M Ant1 2480 0~Reference -1.37 -1.37 --- PASS BLE_2M Ant1 2480 30~1000 -1.37 -61.9 ≤-21.37 PASS BLE_2M Ant1 2480 1000~26500 -1.37 -35.68 ≤-21.37 PASS Note: offset(dB) in Reference test plots = cable loss(dB) + attenuator factor(dB); For spurious emissions plots from 30MHz to 26.5GHz, the cable loss and attenuator factors have been set in the 'Input Correction' of the Spectrum Analyzer during the test. Appendix Test Data of the Report No.: TZ0028260306FRF02 Page 21 of 33 Test Graphs BLE_1M-Ant1-2402-0~Reference-PASS BLE_1M-Ant1-2402-30~1000-PASS Ap…

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Report No.: TZ0028260306FRF02 Page 1 of 33 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing 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 apply only to the specific sample(s) tested under stated test conditions. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. TEST REPORT Report Number : TZ0028260306FRF02 Product Name : 6.0 Bluetooth Adapter Model/Type reference : BTA-60, BT6.0, BT603, BT601 FCC ID : 2A3F2-BTA-60 Prepared for : Shenzhen lianhongxin Industrial Co., Ltd Floor 5, building C, B8 Industrial Park, Baihua community, Guangming Street, Shenzhen, China Prepared By : Shenzhen Tongzhou Testing Co.,Ltd. 1st Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Standards : FCC CFR Title 47 Part 15C, ANSI C63.10-2020 Date of Test : 2026-04-23 ~ 2026-04-26 Date of Issue : 2026-04-26 Prepared by : Lena Wen Reviewed by : Allen Lai Approved by : Max Zhang (Authorized Officer) Report No.: TZ0028260306FRF02 Page 2 of 33 ** Report Revise Record ** Report Version Revise Time Issued Date Valid Version Notes V1.0 / 2026-04-26 Valid Initial release Report No.: TZ0028260306FRF02 Page 3 of 33 TABLE OF CONTENTS 1. G E N E R A L I N F O R M A T I O N ........................................................ 4 1.1. Client Information ................................................................................................................... 4 1.2. Description of Device (EUT) ................................................................................................... 4 1.3. Wireless Function Tested in this Report .............................................................................. 4 1.4. EUT configuration ................................................................................................................... 5 1.5. Description of Test Facility .................................................................................................... 5 1.6. Statement of the Measurement Uncertainty ......................................................................... 6 1.7. Measurement Uncertainty ...................................................................................................... 6 1.8. Description of Test Modes ..................................................................................................... 6 1.9. Frequency of Channels .......................................................................................................... 7 2. T E S T M E T H O D O L O G Y ............................................................ 8 2.1. EUT Configuration .................................................................................................................. 8 2.2. EUT Exercise ........................................................................................................................... 8 2.3. Test Sample ............................................................................................................................. 8 3. S Y S T E M T E S T C O N F I G U R A T I O N .............................................. 9 3.1. Justification ............................................................................................................................. 9 3.2. EUT Exercise Software ........................................................................................................... 9 3.3. Special Accessories ............................................................................................................... 9 3.4. Block Diagram/Schematics .................................................................................................... 9 3.5. Equipment Modifications ....................................................................................................... 9 3.6. Test Setup ................................................................................................................................ 9 4. S U M M A R Y O F T E S T R E S U L T S ................................................ 10 5. T E S T R E S U L T ..................................................................... 11 5.1. On Time and Duty Cycle ....................................................................................................... 11 5.2. Maximum Peak Conducted Output Power Measurement ................................................. 12 5.3. Power Spectral Density Measurement ................................................................................ 13 5.4. 6 dB Spectrum Bandwidth and Occupied Channel Bandwidth Measurement ............... 14 5.5. Radiated Emissions Measurement ...................................................................................... 15 5.6. Conducted Spurious Emissions and Band Edges Test .................................................... 24 5.8. Band-edge measurements for radiated emissions ........................................................... 28 5.9. Antenna Requirements ......................................................................................................... 31 6. L I S T O F M E A S U R I N G E Q U I P M E N T .......................................... 32 7. T E S T S E T U P P H O T O G R A P H S O F E U T ...................................... 33 8. E X T E R I O R P H O T O G R A P H S O F E U T ......................................... 33 9. I N T E R I O R P H O T O G R A P H S O F E U T .......................................... 33 Report No.: TZ0028260306FRF02 Page 4 of 33 1. G E N E R A L I N F O R M A T I O N 1.1. Client Information Applicant : Shenzhen lianhongxin Industrial Co., Ltd Addr…

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Report No.: TZ0028260306PH01 Page 1 of 2 Test Setup Photos of the EUT Conducted Emission Radiated Emission Below 1GHz Report No.: TZ0028260306PH01 Page 2 of 2 Radiated Emission Above 1GHz RF Conducted Test