2BH4J-S8600PROWireless Speaker

材质：铜版纸 印刷：彩色印刷 注：英文，需对折,对折后尺寸 70x122mm Wireless pairing: Turn on the device, go to its BT settings, and select“ SOONBOX-S8600PRO “ to pair. Play instructions: ● BT search status: the on/off light flashes quickly, approximately 0.5 seconds per time; ● BT pairing status: The on/off light is constantly on; while the playback status: The on/off light flashes slowly for about 1 second per time. Charging indicator light: The red light turns on while charging and turns off when fully charged. Specifications: Prompt tone: ● There is a prompt tone when turning on/off; ● There is a prompt tone when the maximum volume is reached, and there is no tone at the minimum volume; ● Low Battery Warning: At 20% battery, a first alert sounds. About 20 minutes remain at 40% volume. After the second alert, the speaker shuts off in 1 minute. Please recharge promptly. Mode switching: ● When turned on, it defaults to BT mode; ● Mode switching sequence: BT mode - FM mode- TF mode - USB mode - AUX mode, with priority given to rear insertion. How to Enter/Exit Stereo Pairing Automatic shutdown When the battery power is low, the battery protection will be turned on automatically, Please charge for 4 hours after use. Cannot play music The storage path of the music file cannot be recognized by the player,please store it in the root directory of the removable device. There is no sound when connecting to the computer The computer intertace is connected incorrectly, please select the correct audio output port. There is no response to the keys or the function is in disorder Try again after shutting down. Reset If the machine can't shut down normally due to a malfunction, press and hold the power button for 10 seconds to force a restart. Volume requirements: The default volume for startup is 50%(First use), when turned on again after use, the volume is the same as when it was last turned off. Power saving function: Automatically shut down after 10 minutes of inactivity. Directions for use: Troubleshooting: Button Configuration Wireless Connection How to Use Long press Button Next song Short press Button decrease volume Short press Button increase volume Long press Button Previous song Long press for Turn On and Off / / X X Long press for On/Off the light mode Short press to Pause / Play music Short press to switch function mode Double-tap to disconnect BT Long press to enter dual pairing Pairing pairing mode Long press to cancel the dual pairing Pairing pairing mode X X haven't connected with any device. 2.Long press ” “ once on either speaker(Host 1.Turn on two speakers and make sure they Speaker) to enter stereo pairing mode. 3. Once successfully paired, the stereo pairing 5.To exit stereo pairing mode, press and hold the 4.Turn on the Bluetooth function of your indicator will light up. " " button on either speaker. Model Color BT Version Frequency Range Input Power Driver Charging Time SOONBOX-S8600PRO Blue, Black 5.3 20HZ~20KHZ 5V/2A via Type-C Port 4Ω ≈5 Hours WIRELESS SPEAKER USER GUIDE SOONBOX-S8600PRO Next Song / Volume + Pause/Play Function mode conversion TWS Lightshow turn On / Off Previous Song / Volume - On / Off AUX port USB port TF card port TYPE-C port MusiBaby-M86 Pro NOTE: 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. BT device search&click SOONBOX- S8600PRO This device and its antenna(s) must not be colocated or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement in portable exposure condition without restriction.

Dongguan Lingchao Electronic Technology Co., Ltd. Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Sep. 28, 25 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BH4J-S8600PRO Dongguan Lingchao Electronic 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, Applicant Signature Printed Name: PEIDONG GUO Title: Manager Address: Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China Tel.: +8613530117722 Email: [email protected]

Dongguan Lingchao Electronic Technology Co., Ltd. Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Sep. 28, 25 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2BH4J-S8600PRO Product Name: Wireless Speaker 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: PEIDONG GUO Title: Manager Address: Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China Tel.: +8613530117722 Email: [email protected] Dongguan Lingchao Electronic Technology Co., Ltd. Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, 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

Dongguan Lingchao Electronic Technology Co., Ltd. Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China Date: 2025/9/28 Dear Sir/Madam, We, Dongguan Lingchao Electronic Technology Co., Ltd., Hereby declares the following statement, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Wireless Speaker FCC ID: 2BH4J-S8600PRO Model no.: SOONBOX-S8600PRO, Musibaby-M86 Pro, BSE-50 Sincerely, Name/Title： PEIDONG GUO / Manager Company: Dongguan Lingchao Electronic Technology Co., Ltd. Address: Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China Phone: +8613530117722 Fax: +8613530117722 E-Mail: [email protected]

Dongguan Lingchao Electronic Technology Co., Ltd. Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China September 28, 2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BH4J-S8600PRO 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: Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China Tel.: +8613530117722 Email: [email protected]

Dongguan Lingchao Electronic Technology Co., Ltd. Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, China September 28, 2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BH4J-S8600PRO 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 Dongguan Lingchao Electronic Technology 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, PEIDONG GUO Manager Tel: +8613530117722 Fax: +8613530117722 Email: [email protected]

Report No.: TZ0028250807PH02 Page 1 of 4 Exterior Photographs of EUT Fig.1 Fig.2 Report No.: TZ0028250807PH02 Page 2 of 4 Fig.3 Fig.4 Report No.: TZ0028250807PH02 Page 3 of 4 Fig.5 Fig.6 Report No.: TZ0028250807PH02 Page 4 of 4 Fig.7 Fig.8

Label Location FCC ID: 2BH4J-S8600PRO

Report No.: TZ0028250807PH03 Page 1 of 7 Interior Photographs of EUT Fig.1 Fig.2 Report No.: TZ0028250807PH03 Page 2 of 7 Fig.3 Fig.4 Report No.: TZ0028250807PH03 Page 3 of 7 Fig.5 Fig.6 Report No.: TZ0028250807PH03 Page 4 of 7 Fig.7 Fig.8 Report No.: TZ0028250807PH03 Page 5 of 7 Fig.9 Fig.10 Report No.: TZ0028250807PH03 Page 6 of 7 Fig.11 Fig.12 Bluetooth Antenna Report No.: TZ0028250807PH03 Page 7 of 7 Fig.13

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BH4J-S8600PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 2 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). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BH4J-S8600PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 2 Results 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 0.45 0 1 -0.58 1 1.26 2.79 DH5 Ant1 2441 0.24 -0.5 1 -0.58 0.5 1.12 2.75 DH5 Ant1 2480 -0.89 -1.5 1 -0.58 -0.5 0.89 2.72 2DH5 Ant1 2402 0.43 0 1 -0.58 1 1.26 2.79 2DH5 Ant1 2441 0.23 -0.5 1 -0.58 0.5 1.12 2.75 2DH5 Ant1 2480 -0.98 -1.5 1 -0.58 -0.5 0.89 2.72 3DH5 Ant1 2402 0.37 0 1 -0.58 1 1.26 2.79 3DH5 Ant1 2441 0.19 -0.5 1 -0.58 0.5 1.12 2.75 3DH5 Ant1 2480 -0.94 -1.5 1 -0.58 -0.5 0.89 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.

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 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) 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.

Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 1 of 56 Appendix Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Wireless Speaker Trade Mark: / Test Model: SOONBOX-S8600PRO FCC ID: 2BH4J-S8600PRO 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: 20dB Emission Bandwidth Test Result Test Mode Antenna Frequency [MHz] 20db EBW [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict DH5 Ant1 2402 0.951 2401.529 2402.480 --- --- DH5 Ant1 2441 1.086 2440.475 2441.561 --- --- DH5 Ant1 2480 1.038 2479.484 2480.522 --- --- 2DH5 Ant1 2402 1.302 2401.367 2402.669 --- --- 2DH5 Ant1 2441 1.302 2440.358 2441.660 --- --- 2DH5 Ant1 2480 1.308 2479.346 2480.654 --- --- 3DH5 Ant1 2402 1.305 2401.346 2402.651 --- --- 3DH5 Ant1 2441 1.278 2440.358 2441.636 --- --- 3DH5 Ant1 2480 1.293 2479.352 2480.645 --- --- Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 2 of 56 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 3 of 56 DH5-Ant1-2480 2DH5-Ant1-2402 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 4 of 56 2DH5-Ant1-2441 2DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 5 of 56 3DH5-Ant1-2402 3DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 6 of 56 3DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 7 of 56 Appendix B: Occupied Channel Bandwidth Test Result Test Mode Antenna Frequency [MHz] OCB [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict DH5 Ant1 2402 0.91048 2401.5532 2402.4637 --- --- DH5 Ant1 2441 0.91204 2440.5522 2441.4642 --- --- DH5 Ant1 2480 0.89410 2479.5475 2480.4416 --- --- 2DH5 Ant1 2402 1.1969 2401.4059 2402.6028 --- --- 2DH5 Ant1 2441 1.1999 2440.4036 2441.6035 --- --- 2DH5 Ant1 2480 1.1971 2479.4026 2480.5997 --- --- 3DH5 Ant1 2402 1.1899 2401.4182 2402.6081 --- --- 3DH5 Ant1 2441 1.1946 2440.4076 2441.6022 --- --- 3DH5 Ant1 2480 1.1991 2479.4029 2480.6020 --- --- Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 8 of 56 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 9 of 56 DH5-Ant1-2480 2DH5-Ant1-2402 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 10 of 56 2DH5-Ant1-2441 2DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 11 of 56 3DH5-Ant1-2402 3DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 12 of 56 3DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 13 of 56 Appendix C: Maximum peak conducted output power Test Result Test Mode Antenna Frequency [MHz] Conducted Peak Power [dBm] Conducted Limit [dBm] Verdict DH5 Ant1 2402 0.45 ≤20.97 PASS DH5 Ant1 2441 0.24 ≤20.97 PASS DH5 Ant1 2480 -0.89 ≤20.97 PASS 2DH5 Ant1 2402 0.43 ≤20.97 PASS 2DH5 Ant1 2441 0.23 ≤20.97 PASS 2DH5 Ant1 2480 -0.98 ≤20.97 PASS 3DH5 Ant1 2402 0.37 ≤20.97 PASS 3DH5 Ant1 2441 0.19 ≤20.97 PASS 3DH5 Ant1 2480 -0.94 ≤20.97 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 14 of 56 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2441-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 15 of 56 DH5-Ant1-2480-PASS 2DH5-Ant1-2402-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 16 of 56 2DH5-Ant1-2441-PASS 2DH5-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 17 of 56 3DH5-Ant1-2402-PASS 3DH5-Ant1-2441-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 18 of 56 3DH5-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 19 of 56 Appendix D: Carrier frequency separation Test Result Test Mode Antenna Frequency [MHz] Result [MHz] Limit [MHz] Verdict DH5 Ant1 Hop 1.014 ≥0.724 PASS 2DH5 Ant1 Hop 0.996 ≥0.872 PASS 3DH5 Ant1 Hop 1.022 ≥0.870 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 20 of 56 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 21 of 56 3DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 22 of 56 Appendix E: Time of occupancy Test Result Test Mode Antenna Frequency [MHz] Burst Width [ms] TotalHops [Num] Result [s] Limit [s] Verdict DH5 Ant1 Hop 2.891 70 0.202 ≤0.4 PASS 2DH5 Ant1 Hop 2.885 120 0.346 ≤0.4 PASS 3DH5 Ant1 Hop 2.887 120 0.346 ≤0.4 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 23 of 56 Test Graphs DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 24 of 56 2DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 25 of 56 3DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 26 of 56 Appendix F: Number of hopping channels Test Result Test Mode Antenna Frequency [MHz] Result [Num] Limit [Num] Verdict DH5 Ant1 Hop 79 ≥15 PASS 2DH5 Ant1 Hop 79 ≥15 PASS 3DH5 Ant1 Hop 79 ≥15 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 27 of 56 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 28 of 56 3DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028250807FRF01 Page 29 of 56 Appendix G: Band edge measurements Test Result Test Mode Antenna Ch.Name Frequency [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 -0.09 -43.41 ≤-20.09 PASS DH5 Ant1 High 2480 -1.30 -48.57 ≤-21.3 PASS DH5 Ant1 Low Hop_2402 -1.01 -44.71 ≤-21.01 PASS DH5 Ant1 High Hop_2480 -1.92 -46.16 ≤-21.92 PASS 2DH5 Ant1 Low 2402 -0.25 -44.63 ≤-20.25 PASS 2DH5 Ant1 High 2480 -1.32 -48.94 …

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Report No.: TZ0028250807FRF01 Page 1 of 34 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 : TZ0028250807FRF01 Product Name : Wireless Speaker Model/Type reference : SOONBOX-S8600PRO, Musibaby-M86 Pro, BSE-50 FCC ID : 2BH4J-S8600PRO Prepared for : Dongguan Lingchao Electronic Technology Co., Ltd. Room 301, Building 1, No. 9, No. 1 Street, Zhenxing West Road, Changping Town, Dongguan City, Guangdong Province, 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 : 2025-08-20 ~ 2025-08-27 Date of Issue : 2025-08-28 Prepared by : Nancy Li Reviewed by : Allen Lai Approved by : Max Zhang (Authorized Officer) Report No.: TZ0028250807FRF01 Page 2 of 34 ** Report Revise Record ** Report Version Revise Time Issued Date Valid Version Notes V1.0 / 2025-08-28 Valid Initial release Report No.: TZ0028250807FRF01 Page 3 of 34 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 ......................................................................... 5 1.7. Measurement Uncertainty ...................................................................................................... 6 1.8. Description of Test Modes ..................................................................................................... 6 1.9. Frequency of Channels .......................................................................................................... 6 2. T E S T M E T H O D O L O G Y ............................................................ 7 2.1. EUT Configuration .................................................................................................................. 7 2.2. EUT Exercise ........................................................................................................................... 7 2.3. Test Sample ............................................................................................................................. 7 3. S Y S T E M T E S T C O N F I G U R A T I O N .............................................. 8 3.1. Justification ............................................................................................................................. 8 3.2. EUT Exercise Software ........................................................................................................... 8 3.3. Special Accessories ............................................................................................................... 8 3.4. Block Diagram/Schematics .................................................................................................... 8 3.5. Equipment Modifications ....................................................................................................... 8 3.6. Test Setup ................................................................................................................................ 8 4. S U M M A R Y O F T E S T R E S U L T S ................................................. 9 5. M E A S U R E M E N T R E S U L T S ...................................................... 10 5.1. Maximum Peak Conducted Output Power ......................................................................... 10 5.2. Frequency Separation and 20 Db Bandwidth .................................................................... 11 5.3. Number of Hopping Frequency ........................................................................................... 12 5.4. Time of Occupancy (Dwell Time) ......................................................................................... 13 5.5. Conducted Spurious Emissions and Band Edges Test .................................................... 15 5.6. Restricted Band Emission Limit .......................................................................................... 16 5.7. AC Power line conducted emissions .................................................................................. 25 5.8. Band-edge measurements for radiated emissions ........................................................... 28 5.9. Pseudorandom frequency hopping sequence ................................................................... 31 5.10. Antenna requirement ............................................................................................................ 32 6. S U M M A R Y O F T E S T E Q U I P M E N T ............................................ 33 7. T E S T S E T U P P H O T O G R A P H S ................................................. 34 8. E X T E R N A L P H …

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Report No.: TZ0028250807PH01 Page 1 of 2 Test Setup Photos of the EUT Radiated Emission Below 1GHz Radiated Emission Above 1GHz Report No.: TZ0028250807PH01 Page 2 of 2 Conducted Emission