2BTTR-JD3D300-42

Wuhan Panyuezhe Trade Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [December 24, 2025] U.S. Agent Designation [Wuhan Panyuezhe Trade 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: 2BTTR-JD3 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [Wuhan Panyuezhe Trade Co.,Ltd.]. [Wuhan Panyuezhe Trade Co.,Ltd.] with the FRN [0037776515] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 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. Sincerely, Signature Signature [Ruohai Wang] [Huiying Fan] [PM] [Director] [Wuhan Panyuezhe Trade Co.,Ltd.] [GLOCERTS TECHNOLOGY INC]

Wuhan Panyuezhe Trade Co.,Ltd. (December 24, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID:2BTTR-JD3 [Wuhan Panyuezhe Trade Co.,Ltd.] (“the applicant”) 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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name)Ruohai Wang Wuhan Panyuezhe Trade Co.,Ltd. (December 24, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID:2BTTR-JD3 [Wuhan Panyuezhe Trade 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 as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name)Ruohai Wang

Wuhan Panyuezhe Trade Co.,Ltd. (December 24, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (D300-42 / JD3-DAC85S8542 / FCC ID: 2BTTR-JD3 ) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☒ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Ruohai Wang Title: PM

Wuhan Panyuezhe Trade Co.,Ltd. (December 24, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Ruohai Wang Title: PM

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: JD3-DAC85S8542 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4 BT/WIFI ANT WIFI ANT

FCC ID LABEL: Label Location: FCC ID: 2BTTR-JD3 Model No.: JD3-DAC85S8542

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BTTR-JD3 Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna,R=20cm Test Result of RF Exposure Evaluation BT+WIFI supported simultaneous transmission: BT+2.4GWIFI: ∑MPE Ratio =0.00096/1+0.01853/1=0.01949≤1, BT+5GWIFI: ∑MPE Ratio =0.00096/1+0.01577/1=0.01673≤1, So passed. Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result BLE:1M GFSK &2440 1±1 2 1.5849 2.4155 (3.83dBi) 0.00076 1 Pass BLE:2M GFSK &2440 1±1 2 1.5849 2.4155 (3.83dBi) 0.00076 1 Pass EDR 8DPSK &2441 2±1 3 1.9953 2.4155 (3.83dBi) 0.00096 1 Pass 2.4GWIFI ANT1 802.11ax( HT40) &2412 14±1 15 31.6228 2.3388 (3.69dBi) 0.01472 1 Pass 2.4GWIFI ANT2 802.11n(H T40) &2412 15±1 16 50.1187 2.3388 (3.69dBi) 0.01853 1 Pass 5.2GWIFI ANT1 802.11ac( VHT40) & 5230 12±1 13 19.9526 2.1429 (3.31dBi) 0.00851 1 Pass 5.2GWIFI ANT2 802.11a & 5200 11±1 12 15.8489 2.1429 (3.31dBi) 0.00676 1 Pass 5.8GWIFI ANT1 802.11ax( HE20) & 5825 13±1 14 25.1189 2.5061 (3.99dBi) 0.01253 1 Pass 5.8GWIFI ANT2 802.11n(H T20) & 5825 14±1 15 31.6228 2.5061 (3.99dBi) 0.01577 1 Pass

深圳市南斗星科技有限公司 SHENZHEN SOUTH STAR TECHNOLOGY CO.,LTD QP-21-B01/A2 承 认 书 APPROVAL SHEET 客户名称 Customer Name深圳市智微智能科技股份有限公司 产品型号 Product Model七彩虹 客户料号 Customer P/N 规格描述 Specifications 黑色外置天线，2.4G&5G，SMA 接头 南斗星料号 Southstar P/N 3.N102.0997 制作日期 Production date 2023.05.09 制作版本 Revision1.0 南斗星（Southstar） 编制（FICTION）品质（DQE）研发（R&D） 客户（Customer） 采 购（PUR）品质（QC）研发（R&D） 制造厂商：深圳市南斗星科技有限公司 办公地址：深圳市宝安区福海街道新和社区宝安大道 6099 号星港同创汇天枢座 803 制造地址：广东省东莞市虎门镇赤岗南坊一路 3 号 电 话：0755-27474071 0769-88086190 网 址：//www.southstar-tech.com 样品封订 301800008709 深圳市南斗星科技有限公司 SHENZHENSOUTHSTAR TECHNOLOGYCO.,LTD QP-21-B01/A2 承认书变更履历 版本日期变更描述备注 1.02023.05.09初版 深圳市南斗星科技有限公司 SHENZHENSOUTHSTARTECHNOLOGYCO.,LTD QP-21-B01/A2 目录 Index 一、封面（Cover）··························1 二、版本记录（Colophon）·······················2 三、目录（Index）··························3 四、基本参数（Thebasicparameters）·················4 五、工程图纸（ProductDrawing）···················5 六、测试设备（TestEquipment&Conditions）·············6 七、测试报告（TestReport）····················7-8 八、天线装配图片（Antennaassemblypicture）·············9 九、包装方式（Packingmethod）····················10 深圳市南斗星科技有限公司 SHENZHENSOUTHSTAR TECHNOLOGYCO.,LTD QP-21-B01/A2 基本参数(The basicparameters)： A.电性能ElectricalCharacteristics Frequency频率 2400MHz~2500Hz VSWR电压驻波比≤2 Efficiency效率＞60% Impedance阻抗50 Ohm Polarization极化Linear Gain增益 Note备注： 4dBi B.材料 &物理性能Material& MechanicalCharacteristics 射频材料Materialof Radiator外置 射频线类型CableType1. 78mm棕色 接头类型ConnectorTypeSMA C.环境Environmental 工作温度OperationTemperature-30°C~+65 °C 存放温度StorageTemperature-40°C~+70 °C 5150MHz~5850MHz 单天线测试 FIT A ±0.1±0.2±0.3±0.5±0.8 0.1 Ø0.1 0.1 0.1 ±1.0° 七彩虹-002(黑色) 3.N102.0997 雷双露 2023-05-21 ±1.2 0.1 WiFi天线 廖洋洋 1/1 1000 未 注 公 差 表 mm 版本 第三视角 0.5～6 ＞6～30＞30～120＞120～400＞400～ 角度 South Star 端子方向标准 ±45°±90° 不管控 深 圳 市 南 斗 星 科 技 有 限 公 司 Shenzhen South Star Technology Co.,Ltd 东 莞 市 南 斗 星 科 技 有 限 公 司 Dongguan South Star Technology Co.,Ltd 线长L≤100 100 ＜L ≤200 线长L＞200 ＞1000 页码 2023-05-21 301800008709 12*8*3.5mm 2023-05-21 深圳市南斗星科技有限公司 SHENZHENSOUTHSTARTECHNOLOGYCO.,LTD QP-21-B01/A2 测试设备(TestEquipment&Conditions): 1.网络分析仪NetWorkAnalyzers: KeysightE5071C 2.综合测试仪Comprehensivetester： CMW500、MT8000A、MT8862A 3.3D暗室测试系统3DChamberTestSystem: 深圳市南斗星科技有限公司 SHENZHEN SOUTH STAR TECHNOLOGY CO.,LTD QP-21-B01/A2 天线阻抗(Antenna Impedance):S11 效率&增益(Efficiency & Gain)： 深圳市南斗星科技有限公司 SHENZHEN SOUTH STAR TECHNOLOGY CO.,LTD QP-21-B01/A2 天线 3D&2D方向图(Antenna 3D & 2D pattern)： 深圳市南斗星科技有限公司 SHENZHENSOUTHSTARTECHNOLOGYCO.,LTD QP-21-B01/A2 天线装配图片(Antennaassemblypicture)： 三：装箱(8包/240pcs装一箱)。 四：封箱，外箱贴我司生产标签。

Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 56 TEST REPORT Compiled by: Reviewed by: Approved by: Kai Chen Martin Feng Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: D300-42 FCC ID: 2BTTR-JD3 Trademark: N/A Model Number: JD3-DAC85S8542 Prepared For: Wuhan Panyuezhe Trade Co.,Ltd. Address: Room 511, 5th Floor, Complex Building, No.1 Pansheng Avenue, Shekou Street, Huangpi District, Wuhan, Hubei Province, China Manufacturer: Wuhan Newpassion Technology Co., Ltd. Address: 8th Floor, Complex Building, No.1 Ipason Avenue, shekou Street, Huangpi District, Wuhan Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Sep. 01, 2025 Sample tested Date: Sep. 01, 2025 to Sep. 25, 2025 Issue Date: Sep. 25, 2025 Report No.: CTB25090108202RF02 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.:CTB25090108202RF02 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 56 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 4 2. TEST SUMMARY ................................................................... 5 3. MEASUREMENT UNCERTAINTY ..................................................... 6 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 7 4.1 Product Information .................................................................... 7 4.2 Test Setup Configuration ............................................................... 7 4.3 Support Equipment .................................................................... 7 4.4 Channel List .......................................................................... 8 4.5 Test Mode ............................................................................ 8 4.6 Test Environment ...................................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 9 5.1 Test Facility ........................................................................... 9 5.2 Test Instrument Used .................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION ............................................ 12 6.1 Block Diagram Of Test Setup .......................................................... 12 6.2 Limit ................................................................................ 12 6.3 Test procedure ....................................................................... 12 6.4 Test Result .......................................................................... 14 7. RADIATED SPURIOUS EMISSION ................................................... 16 7.1 Block Diagram Of Test Setup .......................................................... 16 7.2 Limit ................................................................................ 16 7.3 Test procedure ....................................................................... 17 7.4 Test Result .......................................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 27 8.1 Block Diagram Of Test Setup .......................................................... 27 8.2 Limit ................................................................................ 27 8.3 Test procedure ....................................................................... 27 8.4 Test Result .......................................................................... 28 9. COUDUCTED PEAK OUTPUT POWER ............................................... 35 9.1 Block Diagram Of Test Setup .......................................................... 35 9.2 Limit ................................................................................ 35 9.3 Test procedure ....................................................................... 35 9.4 Test Result .......................................................................... 35 10. 20DB OCCUPIED BANDWIDTH...................................................... 39 10.1 Block Diagram Of Test Setup ......................................................... 39 10.2 Limit ............................................................................... 39 10.3 Test procedure ...................................................................... 39 10.4 Test Result ......................................................................... 39 11. CARRIER FREQUENCIES SEPARATION ............................................. 43 11.1 Block Diagram Of Test Setup ......................................................... 43 11.2 Limit ............................................................................... 43 11.3 Test procedure ...................................................................... 43 11.4 Test Result ......................................................................... 43 12. HOPPING CHANNEL NUMBER ...................................................... 47 12.1 Block Diagram Of Test Setup ......................................................... 47 12.2 Limit .................…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: JD3-DAC85S8542 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions