2A25L-GH05Wireless Audio Transmitter

FCC Warming: 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. lf 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. RF warning for Portable device: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2A25L-GH05 GH05 We hereby acknowledge as follows: i. both signees confirm that the point of contact accepts responsibility to act as a US- American Representative on behalf of the applicant ii. the point of contact provides the physical U.S. address and email as listed below iii. both parties maintain the requirements of this agreement for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. iv. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. US-American Point of Contact Applicant/Approval Holder Signature Date: 2026-8-10 Signature Date: 2026-8-10 Company Name: GLOCERTS TECHNOLOGY INC Shenzhen zhensimei Technology Co., Ltd FRN: 0036339737 0038404653 Contact Name: Huiying Fan Alink zhao Address: 19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507 United States No. 301, No. 22, East Shengjingyuan Industrial Park, Fuqian Road, fumin community, Fucheng Street, Shenzhen, China Phone: (626) 588-8039 15118819784 Email: [email protected] [email protected] Alink Zhao

Page 1 of 2 FCC ID: 2A25L-GH05 External photos Page 2 of 2 FCC ID: 2A25L-GH05

Label FCC ID: 2A25L-GH05

Page 1 of 2 FCC ID: 2A25L-GH05 Internal photos PCB ANT Page 2 of 2 FCC ID: 2A25L-GH05

Page 1 of 8 Report No.: AiTDG-260811002FW3 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited. If there is a need to alter or revise this document, the right belongs to Dongguan Yaxu (AiT) Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. RF Exposure evaluation Product Name : Wireless Audio Transmitter Brand Name : N/A Model : GH05 Series Model : N/A FCC ID : 2A25L-GH05 Applicant : Shenzhen Zhensimei Technology Co., LTD Address : No. 301, No. 22, East Shengjingyuan Industrial Park, Fuqian Road, fumin community, Fucheng Street, Shenzhen, China Manufacturer : Dongguan Yiyuan Intelligent Technology Co., Ltd. Address : Room 201, Building 4, No. 103, Binhe North Road, Guanjingtou, Fenggang Town, Dongguan City, Guangdong Province, P.R. China Standard(s) : 47CFR §1.1310, 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt : Jul. 06, 2026 Date of Test : Jul. 06, 2026~ Jul. 15, 2026 Issued Date : Jul. 15, 2026 Issued By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Reviewed by: Approved by: Emiya Lin Simba Huang Page 2 of 8 Report No.: AiTDG-260811002FW3 Report Revise Record Report Version Issued Date Notes M0 Jul. 15, 2026 Initial Release Page 3 of 8 Report No.: AiTDG-260811002FW3 Contents 1 GENERAL INFORMATION .......................................................................................................................................... 4 1.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 4 1.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 TEST FACILITY .............................................................................................................................................................. 5 1.5 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 METHOD OF MEASUREMENT ................................................................................................................................... 6 2.1 APPLICABLE STANDARD.................................................................................................................................................. 6 2.2 EVALUATION METHOD AND LIMIT .................................................................................................................................... 6 2.3 MANUFACTURING TOLERANCE ........................................................................................................................................ 7 2.4 EVALUATION RESULT ..................................................................................................................................................... 8 2.5 CONCLUSION ............................................................................................................................................................... 8 Page 4 of 8 Report No.: AiTDG-260811002FW3 1 GENERAL INFORMATION 1.1 Environmental conditions During the measurement the environmental conditions were within the listed ranges: Normal Temperature: 25°C Relative Humidity: 55 % Air Pressure: 101 kPa 1.2 General Description of EUT Product Name: Wireless Audio Transmitter Model/Type reference: GH05 Serial Model: N/A Power Ratings: DC 3.7V 250mAh from Rechargeable Li-ion battery or DC 5V from external circuit Hardware Version: N/A Software Version: N/A Sample(s) Status: AiTDG-260811002-1(Normal sample) AiTDG-260811002-2(Engineer sample) Bluetooth: Supported type: Bluetooth BR/EDR Modulation: GFSK, π/4DQPSK, 8DPSK Operation frequency: 2402MHz~2480MHz Channel number: 79 Channel separation: 1MHz Antenna type: PCB antenna Antenna gain: 1.70dBi Bluetooth LE: Supported type: Bluetooth LE 1M/2M Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel number: 40 Channel separation: 2MHz Antenna type: PCB antenna Antenna gain: 1.70dBi Remark: The above DUT's information was declared by manufacturer. For more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. Page 5 of 8 Report No.: AiTDG-260811002FW3 1.3 Test Facility 1.4 Test Facility Test Laboratory: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China The test facility is recognized, certified or accredited by the following organizations: CNAS-Registration No: L6177 Dongguan Yaxu (AiT) technology Limited is accredited to ISO/IEC 17025:2017 general Requirements for the competence of testing and calibration laboratories (CNAS-CL01 Accreditation Criteria for the competence of testing and calibration laboratories) on April 18, 2022 FCC-Registration No.: 703111 Designation Number: CN1313 Dongguan Yaxu (AiT) Technology Limited has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. IC-Registration No.…

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Jiewei Intelligent Internet of Things Technology (Changzhou) Co., Ltd. Room 106, Building C, Tianrun Tech Building Changzhou Science & Education Town Changzhou, China Product specification Quick Reference Date Antenna module on the system board Frequency2.4-2.48GHz *1 Ant. Port Input Pwr. (dBm)0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm)-2.3 (Input pwr – loss pwr) Peak EIRP(dBm)1.3 Directivity (dBi)1 (all direction antenna) Efficiency (dB)-2.3 (58.5%) Gain (dBi)1.7 (Peak Gain XY-plane) Maximum Power (dBm)1.3 (XY-plane) Minimum Power (dBm)-4(XY-plane) Avg. Power (dBm)-0.5(XY-plane) Max/Min Ratio (dB)5.3(XY-plane) Max/Avg Ratio (dB)1.8(XY-plane) Min/Avg Ratio (dB)-3.5(XY-plane) Average Gain (dB)-0.5 (Avg Gain XY-plane) All the technical data and information contained herein are subject to change without prior notice AntennaLayout&moduleonthe system board Antenna Gain Gain Table Unit in dBi @2.44GHz XY-planeXZ-planeYZ-planeEfficiency PeakAvg.PeakAvg.PeakAvg. Module Board 1.3-0.51.7-3.81.1-3.058.5% Return Loss The Environment of Antenna Radiation Pattern 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

Page 1 of 60 Report No.: AiTDG-260811002FW1 Appendix RF test data for BT Page 2 of 60 Report No.: AiTDG-260811002FW1 1. Duty Cycle 1.1 Test Result 1.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) GFSK SISO 2402 DH5 2.926 3.751 78.01 1.08 0.03 2441 DH5 2.926 3.751 78.01 1.08 0.03 2480 DH5 2.926 3.751 78.01 1.08 0.03 Pi/4DQPSK SISO 2402 2DH5 1.554 3.749 41.45 3.82 0.02 2441 2DH5 1.554 3.749 41.45 3.82 0.02 2480 2DH5 1.554 3.750 41.44 3.83 0.03 8DPSK SISO 2402 3DH5 1.095 3.750 29.20 5.35 0.03 2441 3DH5 1.094 3.749 29.18 5.35 0.02 2480 3DH5 1.095 3.750 29.20 5.35 0.02 Page 3 of 60 Report No.: AiTDG-260811002FW1 1.2 Test Graph 1.2.1 Ant1 GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 4 of 60 Report No.: AiTDG-260811002FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 5 of 60 Report No.: AiTDG-260811002FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 6 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 7 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 8 of 60 Report No.: AiTDG-260811002FW1 2. Bandwidth 2.1 Test Result 2.1.1 OBW Mode TX Type Frequency (MHz) Packet Type ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.864 / Pass 2441 DH5 1 0.860 / Pass 2480 DH5 1 0.858 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.178 / Pass 2441 2DH5 1 1.178 / Pass 2480 2DH5 1 1.182 / Pass 8DPSK SISO 2402 3DH5 1 1.181 / Pass 2441 3DH5 1 1.185 / Pass 2480 3DH5 1 1.180 / Pass 2.1.2 20dB BW Mode TX Type Frequency (MHz) Packet Type ANT 20dB Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.925 / Pass 2441 DH5 1 0.926 / Pass 2480 DH5 1 0.925 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.267 / Pass 2441 2DH5 1 1.268 / Pass 2480 2DH5 1 1.268 / Pass 8DPSK SISO 2402 3DH5 1 1.288 / Pass 2441 3DH5 1 1.270 / Pass 2480 3DH5 1 1.276 / Pass Page 9 of 60 Report No.: AiTDG-260811002FW1 2.2 Test Graph 2.2.1 OBW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 10 of 60 Report No.: AiTDG-260811002FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 11 of 60 Report No.: AiTDG-260811002FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 12 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 13 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 14 of 60 Report No.: AiTDG-260811002FW1 2.2.2 20dB BW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 15 of 60 Report No.: AiTDG-260811002FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 16 of 60 Report No.: AiTDG-260811002FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 17 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 18 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 19 of 60 Report No.: AiTDG-260811002FW1 3. Maximum Conducted Output Power 3.1 Test Result 3.1.1 Power Mode TX Type Frequency (MHz) Packet Type Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit GFSK SISO 2402 DH5 2.78 <=30 Pass 2441 DH5 2.43 <=30 Pass 2480 DH5 2.73 <=30 Pass Pi/4DQPSK SISO 2402 2DH5 3.57 <=20.97 Pass 2441 2DH5 2.54 <=20.97 Pass 2480 2DH5 2.38 <=20.97 Pass 8DPSK SISO 2402 3DH5 3.65 <=20.97 Pass 2441 3DH5 2.75 <=20.97 Pass 2480 3DH5 2.65 <=20.97 Pass Note1: Antenna Gain: Ant1: 1.70dBi; Page 20 of 60 Report No.: AiTDG-260811002FW1 3.2 Test Graph 3.2.1 Power GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 21 of 60 Report No.: AiTDG-260811002FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 22 of 60 Report No.: AiTDG-260811002FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 23 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 24 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 25 of 60 Report No.: AiTDG-260811002FW1 4. Carrier Frequency Separation 4.1 Test Result 4.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Channel Separation (MHz) 20dB Bandwidth (MHz) Limit (MHz) Verdict GFSK SISO HOPP DH5 1.000 0.926 >=0.926 Pass Pi/4DQPSK SISO HOPP 2DH5 1.003 1.268 >=0.845 Pass 8DPSK SISO HOPP 3DH5 0.994 1.288 >=0.859 Pass Page 26 of 60 Report No.: AiTDG-260811002FW1 4.2 Test Graph 4.2.1 Ant1 GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Page 27 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_HOPP_Ant1_NTNV Page 28 of 60 Report No.: AiTDG-260811002FW1 5. Number of Hopping Frequencies 5.1 Test Result 5.1.1 HoppNum Mode TX Type Frequency (MHz) Packet Type Num of Hopping Frequencies Verdict ANT1 Limit GFSK SISO HOPP DH5 79 >=15 Pass Pi/4DQPSK SISO HOPP 2DH5 79 >=15 Pass 8DPSK SISO HOPP 3DH5 79 >=15 Pass Page 29 of 60 Report No.: AiTDG-260811002FW1 5.2 Test Graph 5.2.1 HoppNum GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Page 30 of 60 Report No.: AiTDG-260811002FW1 8DPSK_3DH5_HOPP_Ant1_NTNV Page 31 of 60 Report No.: AiTDG-260811002FW1 6. Time of Occupancy (Dwell Time) 6.1 Test Result 6.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Duration of Single Pulse (ms) Observation Period (s) Num of Pulse in Observation Period Dwell Time (ms) Limit (ms) Verdict GFSK SISO HOPP DH1 0.428 31.600 320 136.960 <=400 Pass DH3 1.684 31.600 173 291.332 <=400 Pass DH5 2.932 31.600 105 307.860 <=400 Pass Pi/4DQPSK SISO HOPP 2DH1 0.402 31.600 319 128.238 <=400 Pass 2DH3 1.558 31.600 152 236.816 <=400 Pass 2DH5 2.918 31.600 92 268.456 <=400 Pass 8DPSK SISO HOPP 3DH1 0.416 31.600 320 133.120 <=400 Pass 3DH3 1.670 31.600 171 285.570 <=400 Pass 3DH5 2.920 31.600 102 297.840 <=400 Pass Page 32 of 60 Report No.: AiTDG-260811002FW1 6.2 Test Graph 6.2.1 Ant1 GF…

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Page 1 of 37 Report No.: AiTDG-260811002W1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. TEST REPORT Client Information: Applicant: Shenzhen Zhensimei Technology Co., LTD Applicant add.: No. 301, No. 22, East Shengjingyuan Industrial Park, Fuqian Road, fumin community, Fucheng Street, Shenzhen, China Manufacturer: Dongguan Yiyuan Intelligent Technology Co., Ltd. Manufacturer add.: Room 201, Building 4, No. 103, Binhe North Road, Guanjingtou, Fenggang Town, Dongguan City, Guangdong Province, P.R. China Product Information: Product Name: Wireless Audio Transmitter Model No.: GH05 Brand Name: N/A FCC ID: 2A25L-GH05 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Prepared By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang,Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Date of Receipt: Jul. 06, 2026 Date of Test: Jul. 06, 2026~ Jul. 15, 2026 Date of Issue: Jul. 15, 2026 Test Result: Pass This device described above has been tested by Dongguan Yaxu (AiT) Technology Limited and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited, this document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Emiya Lin Simba Huang Page 2 of 37 Report No.: AiTDG-260811002W1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. 1 Contents Page COVER PAGE 1 CONTENTS .................................................................................................................................................................... 2 2 TEST SUMMARY .......................................................................................................................................................... 4 2.1 Statement of the Measurement Uncertainty ............................................................................... 4 2.2 Measurement Uncertainty ........................................................................................................... 4 3 TEST FACILITY ............................................................................................................................................................. 5 3.1 Deviation from standard .............................................................................................................. 5 3.2 Abnormalities from standard conditions ...................................................................................... 5 3.3 Test Location ............................................................................................................................... 5 4 GENERAL INFORMATION ......................................................................................................................................... 6 4.1 Test frequencies .......................................................................................................................... 7 4.2 EUT Peripheral List ..................................................................................................................... 8 4.3 Test Peripheral List ...................................................................................................................... 8 4.4 TEST METHODOLOGY .............................................................................................................. 9 4.5 Description of Test Modes ......................................................................................................... 10 5 EQUIPMENT USED DURING TEST ........................................................................................................................ 11 6 TEST RESULTS AND MEASUREMENT DATA .................................................................................................... 13 6.1 Antenna requirement ................................................................................................................. 13 6.2 Peak Power Measurement ........................................................................................................ 14 6.3 Frequency Separation and 20 dB Bandwidth ........................................................................... 15 6.4 Number of Hopping Frequency ................................................................................................. 17 6.5 Time of Occupancy (Dwell Time) .............................................................................................. 18 6.6 Conducted Spurious Emissions and Band Edges Test ............................................................. 19 6.7 Restrict-band Band-edge Measurements ................................................................................. 20 6.8 Radiated Emissions Measurement ........................................................................................... 22 6.9 Conducted Emissions ................................................................................................................ 30 6.10 Pseudorandom frequency hopping sequence .......................................................................... 36 7 TEST SETUP PHOTOGRAPHS OF EUT ................................................................................................................ 37 8 EXTERNAL PHOTOGRAPHS OF EUT ................................................................................................................... 37 9 INTERNAL PHOTOGRAPHS OF EUT ...................................................................…

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Page 1 of 2 FCC ID: 2A25L-GH05 Page 2 of 2 FCC ID: 2A25L-GH05