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  3. 2A9MI-SU8

2A9MI-SU8HELMET WIRELESS EARPHONE

Shenzhen Yixi Technology Co., LTD
HELMET WIRELESS EARPHONE - FCC ID 2A9MI-SU8 - Shenzhen Yixi Technology Co., LTD
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Application Details

Equipment Class
DSS - Part 15 Spread Spectrum Transmitter
Date of Grant
Apr 30, 2026
Application Purpose
Original Equipment
Equipment Note
HELMET WIRELESS EARPHONE
Frequency Range
2402.00000000 - 2480.00000000
Company
Shenzhen Yixi Technology Co., LTD
Country
China

Documents & Files

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Users Manual

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Attestation Statements

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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RF Exposure Info

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

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Attestation Statements

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 IDModel name 2A9MI-SU8SU8, SU8 PRO 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 ContactApplicant/Approval Holder Signature Date: 2026-04-24 Signature Date: 2026-04-24 Company Name:GLOCERTS TECHNOLOGY INCShenzhen Yixi Technology Co., LTD FRN:00363397370033155482 Contact Name:Huiying FanQisong Wang Address:19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507 3rd Floor, No. 2, Longquan Technology Industrial Park, Tongsheng Community, Dalang Street, Longhua District, Shenzhen City,China Phone:(626) 588-8039+86-13423817655 Email:[email protected]@qq.com

External Photos

Page 1 of 3 FCC ID: 2A9MI-SU8 External photos Page 2 of 3 FCC ID: 2A9MI-SU8 Page 3 of 3 FCC ID: 2A9MI-SU8

ID Label/Location Info

Label FCC ID: 2A9MI-SU8

Internal Photos

Page 1 of 2 FCC ID: 2A9MI-SU8 Internal photos PCB ANT Page 2 of 2 FCC ID: 2A9MI-SU8

RF Exposure Info

Page 1 of 7 Report No.: AiTSZ-260415013FW2 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 Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test 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. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. RF Exposure evaluation Product Name : HELMET WIRELESS EARPHONE Brand Name : N/A Model : SU8 Series Model : SU8 PRO FCC ID : 2A9MI-SU8 Applicant : Shenzhen Yixi Technology Co., LTD Address : 3rd Floor, No. 2, Longquan Technology Industrial Park, Tongsheng Community, Dalang Street, Longhua District, Shenzhen City,China Manufacturer : Shenzhen Yixi Technology Co., LTD Address : 3rd Floor, No. 2, Longquan Technology Industrial Park, Tongsheng Community, Dalang Street, Longhua District, Shenzhen City,China Standard(s) : 47CFR §1.1310, 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt : Apr.15, 2026 Date of Test : Apr.15, 2026~ Apr.21, 2026 Issued Date : Apr.24, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 7 Report No.: AiTSZ-260415013FW2 Report Revise Record Report Version Issued Date Notes M0 Apr.24, 2026 Initial Release Page 3 of 7 Report No.: AiTSZ-260415013FW2 Contents 1 GENERAL INFORMATION .......................................................................................................................................... 4 1.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 4 1.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 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 ..................................................................................................................................................... 7 2.5 CONCLUSION ............................................................................................................................................................... 7 Page 4 of 7 Report No.: AiTSZ-260415013FW2 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: HELMET WIRELESS EARPHONE Model/Type reference: SU8 Serial Model: SU8 PRO Model difference: All models are same as the samples except model name, all the models are electrical identical same mechanical structure and design. Power Supply: Input: 5V/1A DC 3.7V 500mAh Rechargeable Li-ion battery Hardware Version: V1.0 Software Version: V1.2 Sample(s) Status: AiTSZ-260415013-1(Normal sample) AiTSZ-260415013-2(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: -0.58 dBi 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 7 Report No.: AiTSZ-260415013FW2 1.3 Test Facility Test Laboratory: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China The test facility is recognized, certified or accredited by the following organizations: FCC-Registration No.: 251906 Designation Number: CN1376 Guangdong Asia Hongke Test 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.: 31737 CAB identifier: CN0165 The 3m Semi-anechoic chamber of Guangdong Asia Hongke Test Technology Limited has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 31737 A2LA-Lab Cert. No.: 7133.01 Guangdong Asia Hongke Test Technology Limited has been accredited by A2LA for…

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Test Report

Page 1 of 35 Report No.: AiTSZ-260415013FW1 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 Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test 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. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. TEST REPORT Product Name : HELMET WIRELESS EARPHONE Brand Name : N/A Model : SU8 Series Model : SU8 PRO FCC ID : 2A9MI-SU8 Applicant : Shenzhen Yixi Technology Co., LTD Address : 3rd Floor, No. 2, Longquan Technology Industrial Park, Tongsheng Community, Dalang Street, Longhua District, Shenzhen City,China Manufacturer : Shenzhen Yixi Technology Co., LTD Address : 3rd Floor, No. 2, Longquan Technology Industrial Park, Tongsheng Community, Dalang Street, Longhua District, Shenzhen City,China Standard(s) : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of Receipt : Apr.15, 2026 Date of Test : Apr.15, 2026~ Apr.21, 2026 Issued Date : Apr.24, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 35 Report No.: AiTSZ-260415013FW1 Report Revise Record Report Version Issued Date Notes M0 Apr.24, 2026 Initial Release Page 3 of 35 Report No.: AiTSZ-260415013FW1 Contents 1 TEST SUMMARY ....................................................................................................................................................... 4 1.1 TEST STANDARDS ......................................................................................................................................................... 4 1.2 TEST SUMMARY ........................................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 GENERAL INFORMATION .......................................................................................................................................... 6 2.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 6 2.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.3 DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 7 2.4 SPECIAL ACCESSORIES ................................................................................................................................................... 8 2.5 EQUIPMENT LIST FOR THE TEST ....................................................................................................................................... 8 3 TEST CONDITIONS AND RESULTS ............................................................................................................................ 10 3.1 CONDUCTED EMISSIONS TEST ....................................................................................................................................... 10 3.2 RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 13 3.3 MAXIMUM PEAK OUTPUT POWER................................................................................................................................. 20 3.4 20DB BANDWIDTH ..................................................................................................................................................... 21 3.5 OCCUPIED BANDWIDTH ............................................................................................................................................... 22 3.6 FREQUENCY SEPARATION ............................................................................................................................................. 23 3.7 NUMBER OF HOPPING FREQUENCY ................................................................................................................................. 24 3.8 TIME OF OCCUPANCY (DWELL TIME) .............................................................................................................................. 25 3.9 OUT-OF-BAND EMISSIONS ........................................................................................................................................... 26 3.10 PSEUDORANDOM FREQUENCY HOPPING SEQUENCE .......................................................................................................... 28 3.11 ANTENNA REQUIREMENT ............................................................................................................................................. 29 4 TEST SETUP PHOTOGRAPHS OF EUT ..........................................................................................................…

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Test Report

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 24 50MHz2500MHz2400MHz 24 50MHz 2500MHz Center Frequency -1.26dBi-0.76dBi-0.58dBi-5.25dBi-2.46dBi-1.86dBi MAX. Gain -0.58dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD No. 333, Kexing Road, Xiangzhou District, Zhuhai City Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) Frequency (MHz) MaxMinAvg 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(dBi) Frequency (MHz) MaxMinAvg 2400-5.2537-22.1424-12.4294 2450-2.4652-24.5837-10.4702 2500-1.86120-29.5214-9.20432

Test Report

Page 1 of 59 Report No.: AiTSZ-260415013FW1 Appendix RF test data for BT Page 2 of 59 Report No.: AiTSZ-260415013FW1 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 2.887 3.751 76.97 1.14 0.03 2441 DH5 2.887 3.751 76.97 1.14 0.03 2480 DH5 2.887 3.751 76.97 1.14 0.03 Pi/4DQPSK SISO 2402 2DH5 2.892 3.749 77.14 1.13 0.03 2441 2DH5 2.892 3.749 77.14 1.13 0.03 2480 2DH5 2.892 3.750 77.12 1.13 0.03 8DPSK SISO 2402 3DH5 2.896 3.751 77.21 1.12 0.03 2441 3DH5 2.896 3.751 77.21 1.12 0.03 2480 3DH5 2.895 3.750 77.20 1.12 0.04 Page 3 of 59 Report No.: AiTSZ-260415013FW1 1.2 Test Graph 1.2.1 Ant1 GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 4 of 59 Report No.: AiTSZ-260415013FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 5 of 59 Report No.: AiTSZ-260415013FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 6 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 7 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 8 of 59 Report No.: AiTSZ-260415013FW1 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 0.855 / Pass 2441 DH5 1 0.850 / Pass 2480 DH5 1 0.853 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.174 / Pass 2441 2DH5 1 1.177 / Pass 2480 2DH5 1 1.171 / Pass 8DPSK SISO 2402 3DH5 1 1.183 / Pass 2441 3DH5 1 1.186 / Pass 2480 3DH5 1 1.183 / 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 0.881 / Pass 2441 DH5 1 0.921 / Pass 2480 DH5 1 0.922 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.260 / Pass 2441 2DH5 1 1.260 / Pass 2480 2DH5 1 1.259 / Pass 8DPSK SISO 2402 3DH5 1 1.266 / Pass 2441 3DH5 1 1.260 / Pass 2480 3DH5 1 1.269 / Pass Page 9 of 59 Report No.: AiTSZ-260415013FW1 2.2 Test Graph 2.2.1 OBW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 10 of 59 Report No.: AiTSZ-260415013FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 11 of 59 Report No.: AiTSZ-260415013FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 12 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 13 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 14 of 59 Report No.: AiTSZ-260415013FW1 2.2.2 20dB BW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 15 of 59 Report No.: AiTSZ-260415013FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 16 of 59 Report No.: AiTSZ-260415013FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 17 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 18 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 19 of 59 Report No.: AiTSZ-260415013FW1 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 -5.12 <=30 Pass 2441 DH5 -5.65 <=30 Pass 2480 DH5 -6.17 <=30 Pass Pi/4DQPSK SISO 2402 2DH5 -4.26 <=20.97 Pass 2441 2DH5 -4.78 <=20.97 Pass 2480 2DH5 -5.27 <=20.97 Pass 8DPSK SISO 2402 3DH5 -3.90 <=20.97 Pass 2441 3DH5 -4.41 <=20.97 Pass 2480 3DH5 -4.91 <=20.97 Pass Note1: Antenna Gain: Ant1: -0.58dBi; Page 20 of 59 Report No.: AiTSZ-260415013FW1 3.2 Test Graph 3.2.1 Power GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 21 of 59 Report No.: AiTSZ-260415013FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 22 of 59 Report No.: AiTSZ-260415013FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 23 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 24 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 25 of 59 Report No.: AiTSZ-260415013FW1 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 0.922 >=0.922 Pass Pi/4DQPSK SISO HOPP 2DH5 1.003 1.260 >=0.84 Pass 8DPSK SISO HOPP 3DH5 0.998 1.269 >=0.846 Pass Page 26 of 59 Report No.: AiTSZ-260415013FW1 4.2 Test Graph 4.2.1 Ant1 GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Page 27 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_HOPP_Ant1_NTNV Page 28 of 59 Report No.: AiTSZ-260415013FW1 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 59 Report No.: AiTSZ-260415013FW1 5.2 Test Graph 5.2.1 HoppNum GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Page 30 of 59 Report No.: AiTSZ-260415013FW1 8DPSK_3DH5_HOPP_Ant1_NTNV Page 31 of 59 Report No.: AiTSZ-260415013FW1 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 0.384 31.600 319 122.496 <=400 Pass DH3 1.642 31.600 164 269.288 <=400 Pass DH5 2.892 31.600 111 321.012 <=400 Pass Pi/4DQPSK SISO HOPP 2DH1 0.390 31.600 320 124.800 <=400 Pass 2DH3 1.642 31.600 151 247.942 <=400 Pass 2DH5 2.892 31.600 119 344.148 <=400 Pass 8DPSK SISO HOPP 3DH1 0.396 31.600 320 126.720 <=400 Pass 3DH3 1.646 31.600 157 258.422 <=400 Pass 3DH5 2.900 31.600 97 281.300 <=400 Pass Page 32 of 59 Report No.: AiTSZ-260415013FW1 6.2 Test Graph 6.2.…

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Test Setup Photos

Page 1 of 2 FCC ID: 2A9MI-SU8 Page 2 of 2 FCC ID: 2A9MI-SU8

Contact Information

Applicant

Qisong Wang
[email protected]Fax: N/A

Technical Contact

GLOCERTS TECHNOLOGY INCHuiying Fan
[email protected]

19784 SUNKISSED RIDGE DR · United States

Test Firm

Guangdong Asia Hongke Test Technology LimitedCoin Tang
[email protected]

Technical Specifications

#Rule PartsFrequency RangePower Output
115C2.40 GHz - 2.48 GHz400.00 µW
Confidentiality
Long Term
Grant Notes
Output Power listed is peak conducted.

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