2BTKR-PSB6Waterproof Bluetooth soundbar

Ningbo AVS Technology Co., Ltd. 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang Province, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Jan. 14, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BTKR-PSB6 Ningbo AVS 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: Gu Wendong Title: Manager Address: 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang Province, China Tel.: 17771736801 Email: [email protected]

Ningbo AVS Technology Co., Ltd. 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang Province, China 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Jan. 14, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2BTKR-PSB6 Product Name: Waterproof Bluetooth soundbar 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: Gu Wendong Title: Manager Address: 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang Province, China Tel.: 17771736801 Email: [email protected] Ningbo AVS Technology Co., Ltd. 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang 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

Ningbo AVS Technology Co., Ltd. 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang Province, China January 14, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BTKR-PSB6 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: 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang Province, China Tel.: 17771736801 Email: [email protected]

Ningbo AVS Technology Co., Ltd. 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang Province, China January 14, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BTKR-PSB6 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 Ningbo AVS 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, Gu Wendong Manager Tel: 17771736801 Fax: N/A Email: [email protected]

Report No.: TZ0028251118PH02 Page 1 of 4 Exterior Photographs of EUT Fig.1 Fig.2 Report No.: TZ0028251118PH02 Page 2 of 4 Fig.3 Fig.4 Report No.: TZ0028251118PH02 Page 3 of 4 Fig.5 Fig.6 Report No.: TZ0028251118PH02 Page 4 of 4 Fig.7

Label Location FCC ID: 2BTKR-PSB6

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BTKR-PSB6 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: 2BTKR-PSB6 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): 20 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 -1.21 -1.5 1 0 -0.5 0.89 3060.00 DH5 Ant1 2441 -0.58 -1 1 0 0 1.00 3060.00 DH5 Ant1 2480 -0.75 -1 1 0 0 1.00 3060.00 2DH5 Ant1 2402 -0.55 -1 1 0 0 1.00 3060.00 2DH5 Ant1 2441 0.1 -0.5 1 0 0.5 1.12 3060.00 2DH5 Ant1 2480 -0.1 -0.5 1 0 0.5 1.12 3060.00 3DH5 Ant1 2402 -0.15 -0.5 1 0 0.5 1.12 3060.00 3DH5 Ant1 2441 0.48 0 1 0 1 1.26 3060.00 3DH5 Ant1 2480 0.21 -0.5 1 0 0.5 1.12 3060.00 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.

Sunlord Specifications for Chip Antenna Page 1 of 9 Sunlord S P E C I F I C AT I O N S Customer Product Name PCB Antenna Sunlord Part Number SLDA92-2R660G-S1TF Customer Part Number [ New Released, Revised] SPEC No.: SLDA000000 Rev. Effective Date Changed Contents Change reasons Approved By 01 / New release / Hai Guo 【 This SPEC is total 9 pages 】 【 ROHS Compliant Parts 】 Approved By Checked By Issued By Shenzhen Daybetter Technology Co., Ltd. Address:715,7/F Shangfu Building,Dengliang Road,Nanshan,Shenzhen Tel: 0086-755-86185999 Fax:0086-755-86038622 Mail:[email protected] 【For Customer approval Only】 Date: Qualification Status: Full Restric ted Rejected Approved By Verified By Re-checked By Checked By Comments: Sunlord Specifications for Chip Antenna Page 2 of 9 Table of Contents 1. Scope 2. Applied Documents 3. Product Descriptions and Identification (Part Number) 4. Electrical Characteristics 5. Shape and Dimensions 6. Test and Measurement Procedures 6.1 Test Conditions 6.2 Visual Examination 6.3 Reliability Test 6.3.1 Teminal Strength 6.3.2 Resistance to Flexure 6.3.3 Dropping 6.3.4 Solderability 6.3.5 Resistance to Soldering Heat 6.3.6 Thermal Shock 6.3.7 Temperature Characteristics 6.3.8 Damp Heat (Steady State) 6.3.9 Resistance to High Temperature 7. Packaging Storage and Transportation 3 3 3 3 3~4 4~5 4 4 4~5 4 4 4 4 5 5 5 5 5 5~7 7.1 Packaging 5~6 7.2 Storage 7 7.3 Transportation 7 7.4 General Handing Precautions 7 7.5 Precautions on Use 7 8. Packaging Documents and Marking 7~8 8.1 Packaging Documents 7 8.2 Marking 7~8 9. Recommended Soldering Technologies 8~9 9.1 RE-flowing Profile 8 9.2 Iron Soldering Profile 8 9.3 Solder Volume 8 9.4 Attention Regarding PCB Bending 8 9.5 Cleaning 9 10. Supplier Information 9 Sunlord Specifications for Chip Antenna Page 3 of 9 ⑤ Packing B Bulk Package T Tape Carrier Package 1.Scope This specification applies to SLDA92-2R660G-S1 of Multi-layer Chip Antenna. 2.Applied Documents MIL-STD-202 Test Methods for Electronic and Electrical Chip Parts. IEC-68 Test Methods for Environmental Testing. 3.Product Description and Identification (Part Number) SLDA92-2R660G-S1TF ①②③④⑤⑥ ① Type SLDA Multilayer Chip Antenna ②External Dimensions（L × W） [mm] 92 9.0×2.0 ③ Center Frequency 2R660G 2660.0MHz ④ Series Code S1 ⑥HSF Products Hazardous Substance Free Products 4.Electrical Characteristics Part Number Band WidthPeak GainAverage Gain VSWRImpedancePower Capacity MHz V-XZV-XZIn BW Ω W SLDA92-2R660G-S1 ≥200 0.0 dBi typ.-1.0 dBi typ < 2503 W max 1)Operating and storage temperature range (individual chip without packing): -40°C ~+85°C. 2)Storage temperature range (packaging c onditions): -10°C~+40°C and RH 90% (Max.). 3)Test equipment: Network Analyzer——HP8753E, HP8719ES. 4)Electrical Performance: See Fig.4-1 Fig.4-1 5.Shape and Dimensions 1)Dimensions and recommended PCB pattern for reflow soldering: See Fig.5-1 Fig.5-1 A B CD.EFGHI SLDA929.0±0.22.0±0.21.0±0.20.5±0.2 2.01.51.08.01.4 Sunlord Specifications for Chip Antenna Page 4 of 9 No. Terminal Name No. Terminal Name (1)Feeding Point(2)NC 2) Terminal Configuration (1) 6.Test and Measurement Procedures 6.1 Test Conditions Unless otherwise specified, the standard atmospheric conditions for measurement/test as: a.Ambient Temperature: 20±15°C b.Relative Humidity: 65±2 0% c.Air Pressure: 86 KPa to 106 KPa If any doubt on the results, measurements/tests should be made within the following limits: a.Ambient Temperature: 20±2°C b.Relative Humidity: 65±5% c.Air Pressure: 86KPa to 106 KPa 6.2 Visual Examination a.Inspection Equipment: 20 X magnifier 6.3 Reliability Test Items Requirements Test Methods and Remarks 6.3.1. Terminal Strength No visible mechanical damage. ①Solder the inductor to the testing jig (glass epoxy board shown as the following figure) using eutectic solder. Then apply a force in the direction of the arrow. ②15N force for 9020 series. ③Keep time: 10±1sec. Chip Mounting Pad 15N/10±1s Speed: 1.0mm/s Glass Epoxy Board 6.3.2. Resistance to Flexure No visible mechanical damage. ① Solder the chip to the test jig (glass epoxy board) using a eutectic solder. Then apply a force in the direction shown as the following figure. Solder the chip to the test jig (glass epoxy board) using eutectic solder. Then apply a force in the direction. ② Flexure: 2mm ③Pressurizing Speed: 0.5mm/sec ④Keep time: ≥30 sec Unit: mm [inch] 20 10 R10 45[1.772] 45[1.772] Flexure: 2mm 6.3.3. Dropping No visible mechanical damage. 6.3.4. Solderability ①No visible mechanical damage. ② Wetting shall be exceeded 75% coverage. Drop the chip 10 times on a concrete floor from a height of 50 cm. ① Solder temperature: 240±2°C ② Duration: 3sec ③ Solder: Sn/3.0Ag/0.5Cu ④ Flux: 25% Resin and 75% ethanol in weight Sunlord Specifications for Chip Antenna Page 5 of 9 Items Requirements Test Methods and Remarks 6.3.5. Resistance to Soldering Heat No visible mechanical damage. ① Solder temperature: 260±5°C ② Duration: 5 sec ③ Solder: Sn/3.0Ag/0.5Cu ④ Flux: 25% Resin and 75% ethanol in weight ⑤ The chip shall be stabilized at normal condition for 1~2 hours before measuring. 6.3.6. Thermal Shock ① No visible mechanical damage. ② Satisfy electrical Characteristic. ① Temperature and time: -40°C for 30±3 min→85°C for 30±3min ② Transforming interval: Max. 20 sec. ③ Tested cycle: 10 cycles for SLDA series ④ The chip shall be stabilized at normal condition for 1~2 hours before measuring. 85°C Ambient Temperature 30 min. -40°C 30 min. 30 min. 20sec. (max.) 6.3.7. Temperature Characteristics 6.3.8. Damp Heat (Steady States) 6.3.9. Resistance to High temperature ① No visible mechanical damage. ② Satisfy electrical Characteristic. ① No visible mechanical damage. ② Satisfy electrical Characteristic. ① No visible mechanical damage. ② Satisfy electrical Characteristic. ① Temperature range: -40°C to +85°C ② Reference temperature: +20°C ① Temperature: 40±2°C ② Humidity: 90% to 95% RH ③ Duration: 96 +24 hours for SLDA series ④ The chip shall be stabilized at normal conditio…

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Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 1 of 56 Appendix Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Waterproof Bluetooth soundbar Trade Mark: / Test Model: PSB6 FCC ID: 2BTKR-PSB6 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 0.957 2401.574 2402.531 --- --- DH5 Ant1 2441 0.960 2440.571 2441.531 --- --- DH5 Ant1 2480 0.963 2479.571 2480.534 --- --- 2DH5 Ant1 2402 1.311 2401.382 2402.693 --- --- 2DH5 Ant1 2441 1.311 2440.382 2441.693 --- --- 2DH5 Ant1 2480 1.320 2479.382 2480.702 --- --- 3DH5 Ant1 2402 1.290 2401.391 2402.681 --- --- 3DH5 Ant1 2441 1.347 2440.364 2441.711 --- --- 3DH5 Ant1 2480 1.314 2479.388 2480.702 --- --- Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 2 of 56 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 3 of 56 DH5-Ant1-2480 2DH5-Ant1-2402 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 4 of 56 2DH5-Ant1-2441 2DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 5 of 56 3DH5-Ant1-2402 3DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 6 of 56 3DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028251118FRF01 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 0.86242 2401.6023 2402.4647 --- --- DH5 Ant1 2441 0.84993 2440.6069 2441.4569 --- --- DH5 Ant1 2480 0.86832 2479.6029 2480.4712 --- --- 2DH5 Ant1 2402 1.1933 2401.4398 2402.6331 --- --- 2DH5 Ant1 2441 1.1976 2440.4424 2441.6400 --- --- 2DH5 Ant1 2480 1.1818 2479.4472 2480.6290 --- --- 3DH5 Ant1 2402 1.1989 2401.4365 2402.6354 --- --- 3DH5 Ant1 2441 1.1814 2440.4537 2441.6351 --- --- 3DH5 Ant1 2480 1.1944 2479.4397 2480.6341 --- --- Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 8 of 56 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 9 of 56 DH5-Ant1-2480 2DH5-Ant1-2402 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 10 of 56 2DH5-Ant1-2441 2DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 11 of 56 3DH5-Ant1-2402 3DH5-Ant1-2441 Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 12 of 56 3DH5-Ant1-2480 Appendix Test Data of the Report No.: TZ0028251118FRF01 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 -1.21 ≤30 PASS DH5 Ant1 2441 -0.58 ≤30 PASS DH5 Ant1 2480 -0.75 ≤30 PASS 2DH5 Ant1 2402 -0.55 ≤20.97 PASS 2DH5 Ant1 2441 0.10 ≤20.97 PASS 2DH5 Ant1 2480 -0.10 ≤20.97 PASS 3DH5 Ant1 2402 -0.15 ≤20.97 PASS 3DH5 Ant1 2441 0.48 ≤20.97 PASS 3DH5 Ant1 2480 0.21 ≤20.97 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 14 of 56 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2441-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 15 of 56 DH5-Ant1-2480-PASS 2DH5-Ant1-2402-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 16 of 56 2DH5-Ant1-2441-PASS 2DH5-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 17 of 56 3DH5-Ant1-2402-PASS 3DH5-Ant1-2441-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 18 of 56 3DH5-Ant1-2480-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 19 of 56 Appendix D: Carrier frequency separation Test Result Test Mode Antenna Frequency [MHz] Result [MHz] Limit [MHz] Verdict DH5 Ant1 Hop 0.986 ≥0.963 PASS 2DH5 Ant1 Hop 0.956 ≥0.880 PASS 3DH5 Ant1 Hop 1.002 ≥0.898 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 20 of 56 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 21 of 56 3DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 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 2.878 110 0.317 ≤0.4 PASS 2DH5 Ant1 Hop 2.884 100 0.288 ≤0.4 PASS 3DH5 Ant1 Hop 2.887 100 0.289 ≤0.4 PASS Note: offset(dB) = cable loss(dB) + attenuator factor(dB) Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 23 of 56 Test Graphs DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 24 of 56 2DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 25 of 56 3DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 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.: TZ0028251118FRF01 Page 27 of 56 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 Page 28 of 56 3DH5-Ant1-Hop-PASS Appendix Test Data of the Report No.: TZ0028251118FRF01 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 -1.87 -35.54 ≤-21.87 PASS DH5 Ant1 High 2480 -1.21 -39.47 ≤-21.21 PASS DH5 Ant1 Low Hop_2402 -3.13 -38.64 ≤-23.13 PASS DH5 Ant1 High Hop_2480 -1.55 -43.59 ≤-21.55 PASS 2DH5 Ant1 Low 2402 -1.92 -35.95 ≤-21.92 PASS 2DH5 Ant1 High 2480 -1.46 -44.15 ≤-21.46…

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Report No.: TZ0028251118FRF01 Page 1 of 32 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 : TZ0028251118FRF01 Product Name : Waterproof Bluetooth soundbar Model/Type reference : PSB6 FCC ID : 2BTKR-PSB6 Prepared for : Ningbo AVS Technology Co., Ltd. 2F, Building 7, No. 59 Chuangfu Road, Xiaogang Industrial Development Zone, Ningbo, Zhejiang 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 : 2025-11-29 ~ 2025-12-08 Date of Issue : 2025-12-09 Prepared by : Nancy Li Reviewed by : Allen Lai Approved by : Max Zhang (Authorized Officer) Report No.: TZ0028251118FRF01 Page 2 of 32 ** Report Revise Record ** Report Version Revise Time Issued Date Valid Version Notes V1.0 / 2025-12-09 Valid Initial release Report No.: TZ0028251118FRF01 Page 3 of 32 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 ........................................................... 26 5.9. Pseudorandom frequency hopping sequence ................................................................... 29 5.10. Antenna requirement ............................................................................................................ 30 6. S U M M A R Y O F T E S T E Q U I P M E N T ............................................ 31 7. T E S T S E T U P P H O T O G R A P H S ................................................. 32 8. E X T E R N A L P H O T O S O F T H E E U T ..................................…

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Report No.: TZ0028251118PH01 Page 1 of 1 Test Setup Photos of the EUT Radiated Emission Below 1GHz Radiated Emission Above 1GHz