2A3PH-A1-XR-179D-99Multifunctional audio

Rev 1/26/2023 Axcel (Huizhou) Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 09-09-2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2A3PH-A1-XR-179D-99 Axcel (Huizhou) Technology 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. [Axcel (Huizhou) Technology Co., Ltd.] (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24- 886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, Signature Changqing He Rev 1/26/2023 Axcel (Huizhou) Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 09-09-2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2A3PH-A1-XR-179D-99 Axcel (Huizhou) 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 (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Signature Changqing He

Axcel (Huizhou) Technology Co., Ltd. Xinsongyaoyu Industrial Park, Dongming Village, 516269 Shatian Town, Huiyang District, Huizhou, Guangdong, China Date: 2026-09-09 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2A3PH-A1-XR-179D-99 FRN: 0031646540 US Agent – Attestation Statement / Part 2.911(d)(7) Axcel (Huizhou) Technology Co., Ltd. certifies, that as of 2026-09-09, we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2A3PH-A1-XR-179D-99. Axcel (Huizhou) Technology Co., Ltd., accepts to maintain an agent of 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. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of Axcel (Huizhou) Technology Co., Ltd. for FCC ID: 2A3PH-A1-XR-179D-99 Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: Axcel (Huizhou) Technology Co., Ltd. Designated Agent: FCC US Agent, LLC Company Representative: Changqing He Designated Agent Representative: Tim Payne Signature: Signature:

Axcel (Huizhou) Technology Co., Ltd. Date: September 9, 2026 FCC ID: 2A3PH-A1-XR-179D-99 Model Number: XR-179D-99, XR-179D-55, XR-179D-66, XR-179ERB-1(T), XRD-189B, XR-KR168, XRD-189B-77, XRD-189B-90, XRD-179BD, XR-179ERB, XR-179ERB-1, XRD-189B-99, XRD-189BD-99, XR-179ERB-5, XR-301 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Axcel (Huizhou) Technology Co., Ltd. declare that this EUT (FCC ID: 2A3PH-A1-XR-179D-99) will conduct FCC compliance testing, the SDOC part recognized test lab(No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China) Please contact me if you have any question. Sincerely, (Signed) Name / Title: Changqing He / manager Company: Axcel (Huizhou) Technology Co., Ltd. Address: Xinsongyaoyu Industrial Park, Dongming Village, 516269 Shatian Town, Huiyang District, Huizhou, Guangdong, China

Axcel (Huizhou) Technology Co., Ltd. Family models difference declaration Product Name: Multifunctional audio Trade Name: N/A Model Name: XR-179D-99 Family Model: XR-179D-55, XR-179D-66, XR-179ERB-1(T), XRD-189B, XR-KR168, XRD-189B-77, XRD-189B-90, XRD-179BD, XR-179ERB, XR-179ERB-1, XRD-189B- 99, XRD-189BD-99, XR-179ERB-5, XR-301 FCC ID: 2A3PH-A1-XR-179D-99 Difference declaration: We (Axcel (Huizhou) Technology Co., Ltd.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.), same mechanical structure and design (including product enclosure, materials, etc.), the only difference is the model names and colors. Regards, Signature Name: Changqing He Date: 9/16/2026

Axcel (Huizhou) Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 9/9/2026 SUBJECT: FCC Application for FCC ID: 2A3PH-A1-XR-179D-99 To Whom It May Concern: We, the undersigned, hereby authorize Alex Li at Shenzhen NTEK Testing Technology Co., Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen NTEK Testing Technology Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, (signature) (printed name): Changqing He

< Axcel (Huizhou) Technology Co., Ltd. > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 9/9/2026 Subject; Request for Confidentiality FCC ID: 2A3PH-A1-XR-179D-99 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Tune up procedure BOM In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Changqing He Title: manager Email: [email protected]

Intput:12 Multifunctional audio Lable Size: 70mm(W) x 50mm(H) Multifunctionalaudio FCC ID:2A3PH-A1-XR-179D-99 Model:XR-179D-99 V 2A Date Code:MMYY Manufacturer: Axcel(Huizhou)Technology Co., Ltd. Address:Xinsongyaoyu Industrial park,Dongming Village,516269 Shaitian Town,Huiyang District,Huizhou,Guangdong,China 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. MADE IN CHIANA

FCC ID: 2A3PH-A1-XR-179D-99 RF EXPOSURE EVALUATION According to FCC 1.1310 and KDB 447498 D01 V06, The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) MPE Calculation Method E (V/m) ＝ d G P * * 30 Power Density: Pd (W/m²) ＝ 377 2 E E ＝ Electric field (V/m) P ＝ Average RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 2 * 377 * * 30 D G P From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. Measurement Result BT: Measurement Result Operation Frequency: 2402MHz~2480MHz Power density limited: 1mW/ cm 2 Antenna Type: PCB Antenna Antenna gain:-0.58dBi; R=20cm conducted power Evaluation result Power density Limits (dBm) (mW) (dBi) Numeric 2402 -1.27 -2±1 -1 0.794 -0.58 0.87 0.0001 1 2441 -2.92 -3±1 -2 0.631 -0.58 0.87 0.0001 1 2480 -4.15 -5±1 -4 0.398 -0.58 0.87 0.0001 1 2402 0.95 1±1 2 1.585 -0.58 0.87 0.0003 1 2441 -0.73 -1±1 0 1.000 -0.58 0.87 0.0002 1 2480 -2 -3±1 -2 0.631 -0.58 0.87 0.0001 1 2402 1.5 -3±1 2 1.585 -0.58 0.87 0.0003 1 2441 -0.18 -1±1 0 1.000 -0.58 0.87 0.0002 1 2480 -1.4 -2±1 -1 0.794 -0.58 0.87 0.0001 1 Channel Freq. (MHz) modulation Tune-up power (dBm) (dBm) 2DH5 3DH5 (mW/cm2 ) (mW/cm2) Antenna Gain DH5 Max tune-up power BLE: Operation Frequency: 2402-2480MHz, Power density limited: 1mW/ cm 2 Antenna Type: PCB Antenna Antenna : -0.58dBi R=20cm mW=10^(dBm/10) conducted power Evaluation result Power density Limits (dBm) (mW) (dBi) Numeric 2402 -1.17 -2±1 -1 0.794 -0.58 0.87 0.0001 1 2440 -2.82 -3±1 -2 0.631 -0.58 0.87 0.0001 1 2480 -4.14 -5±1 -4 0.398 -0.58 0.87 0.0001 1 2402 5.77 5±1 6 3.981 0.20 1.05 0.0008 1 2440 5.36 5±1 6 3.981 0.20 1.05 0.0008 1 2480 4.52 5±1 6 3.981 0.20 1.05 0.0008 1 BLE 2M Mode tune-up power Tune-up power (dBm) (dBm) GFSK BLE (mW/cm2) Antenna Gain GFSK Channel Freq. (MHz) Max (mW/cm2 ) modulation Conclusion: For the max result : 0.0003≤ 1.0, SAR is not required. Signature: Date: 2026-08-29 NAME AND TITLE (Please print or type): Alex Li/Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China

InvertedFAntennaSpecification Summary ITEM ANTSPEC ModelName 2.4GANT Center Frequency Gain Horizontal Vertical 2400MHz2450MHz2500MHz2400MHz2450MHz2500MHz -1.26-0.76-0.58-5.25-2.46-1.86 MAX.Gain-0.58dB Polarization HorizontalandVertical AzimuthBeam Pattern Omni-directional Impedance 50Ohm AntennaLength35.40mm Manufacture ShenZhenBluetrumTechnologyCo.,Ltd. Address:NanshanDistrictShaheSubdistrictGaofaCommunityQiaoxiangRoadNo.4068, WisdomPlazaBuildingAUnit1,13thFloor,Shenzhen,Guangdong,China AntennaPhoto&Length(mm) Horizontal:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-40Scale:5/div Frequency (MHz) Gain(dB) 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:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-30Scale:5/div Frequency (MHz) Gain(dB) Max Min Avg 2400-5.2537-22.1424-12.4294 2450-2.4652-24.5837-10.4702 2500-1.86120-29.5214-9.20432

Report No.: N26070905208E Version.1.3 Page 1 of 64 RADIO TEST REPORT FCC ID: 2A3PH-A1-XR-179D-99 Product: Multifunctional audio Trade Mark: N/A Model No.: XR-179D-99 Family Model: XR-179D-55, XR-179D-66, XR-179ERB-1(T), XRD-189B, XR-KR168, XRD-189B-77, XRD-189B-90, XRD-179BD, XR-179ERB, XR-179ERB-1, XRD-189B-99, XRD-189BD-99, XR-179ERB-5, XR-301 Report No.: N26070905208E Issue Date: Aug. 29, 2026 Prepared for Axcel (Huizhou) Technology Co., Ltd. Xinsongyaoyu Industrial Park, Dongming Village, 516269 Shatian Town, Huiyang District, Huizhou, Guangdong, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China Tel. 0755-23200050 Website: http://www.ntek.org.cn Report No.: N26070905208E Version.1.3 Page 2 of 64 Table of Contents Page 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES ..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9 6.2 SUPPORT EQUIPMENT ............................................................................................................................... 10 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 11 7 TEST REQUIREMENTS .................................................................................................................................... 13 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 16 7.3 6DB BANDWIDTH ....................................................................................................................................... 34 7.4 DUTY CYCLE ............................................................................................................................................... 35 7.5 PEAK OUTPUT POWER .............................................................................................................................. 37 7.6 POWER SPECTRAL DENSITY ................................................................................................................... 38 7.7 CONDUCTED BAND EDGE MEASUREMENT ......................................................................................... 40 7.8 SPURIOUS RF CONDUCTED EMISSIONS ................................................................................................ 41 7.9 ANTENNA APPLICATION .......................................................................................................................... 42 8 TEST RESULTS ................................................................................................................................................... 43 8.1 DUTY CYCLE ................................................................................................................................................... 43 8.2 MAXIMUM CONDUCTED OUTPUT POWER ....................................................................................................... 46 8.3 -6DB BANDWIDTH .......................................................................................................................................... 49 8.4 OCCUPIED CHANNEL BANDWIDTH .................................................................................................................. 52 8.5 MAXIMUM POWER SPECTRAL DENSITY LEVEL ............................................................................................... 55 8.6 BAND EDGE .................................................................................................................................................... 58 8.7 CONDUCTED RF SPURIOUS EMISSION ............................................................................................................. 61 Report No.: N26070905208E Version.1.3 Page 3 of 64 1 TEST RESULT CERTIFICATION Applicant’s name ......................... : Axcel (Huizhou) Technology Co., Ltd. Address ....................................... : Xinsongyaoyu Industrial Park, Dongming Village, 516269 Shatian Town, Huiyang District, Huizhou, Guangdong, China Manufacturer's Name .................. : Axcel (Huizhou) Technology Co., Ltd. Address ....................................... : Xinsongyaoyu Industrial Park, Dongming Village, 516269 Shatian Town, Huiyang District, Huizhou, Guangdong, China Product description Product name .............................. : Multifunctional audio Trade Mark .............................…

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