2A9I2-CRHMBH001BFBluetooth Headset

July 22, 2024 July 22, 2024

AOCE Corporation Inc. U.S. Agent Letter 。f Attestati。n T。：Federalc。mmunicationsc。mmissi。n Date: 27-07-2024 7435 Oakland Mills R。ad,Columbia, MD 2’046, USA Ref: Attestati。n Statement - Part2.9刊（d)(7) filing FCC ID:2A912-CRHMBH001 BF ZHEJIANG CFMOTO POWER CO.,L TD.("the applicann c ertifies that, as of the date of the币ling of the application, AOCE Corporation Inc. （ “ the agent ” ） is our designated U.S. age n t for se『vice of p rocess for the abovereference FCC ID. The applicant accepts to maintain an agent for service of process in the United States forno less than 。ne year after either the grantee has permanently terminated all marketing and importation of theapplicable equipment within the U.S., or the conclusion of any Commission－『elated administrative or judicialproceeding involving the equipment, w hichever is later. The applicant further acknowledges it is ouπesponsibility to inform the FCC whenever the agent information changes. AOCE Corporation Inc. （ ” the age nt) understand it is the agent ’ s 。bligati。n to accept service of process in the United States for ma忧e陌related to the applicable equipment, and at the physical U.S. add「 · ess and email address. De sianated U.S. Aaent Company Name: A OCE c。rporation Inc. FRN: 0033401381 GC: 2A99E Add「ess: 6547 N Academy Bivd #2266, Colorado Springs, C0,80918 United States c。ntactPers。n:Johnson.wang Tel: +1-346-582-5234 Aoolicant c。mpanyName: ZHEJIANG CFMOTO POWER CO.,L TD. Address: N。.116,Wuzhou 'Road, Yuhang Economic Development Zone, Linping Dist『ict,Hangzhou, Zhejiang Province, China c。ntactPers。n: Huang Kai Tel: 18701205622 Signature: Email:ww同[email protected] Signature: rl仰罗／阳L Email: cfdl [email protected]

July 22, 2024

July 22, 2024

July 22, 2024

Helmet mounted Bluetooth headset Model: CRHMBH001BF Battery: DC 3.7V, 1100mAh FCC ID:2A9I2-CRHMBH001BF Made in China 长3cm*宽1.5cm

FCC ID: 2A9I2-CRHMBH001BF Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. BT(Module1): Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.4023.381 2.182.5±13.52.24<50.693933.00YES 2.441 2.996 1.992.5±13.52.24<50.699543.00YES 2.480 1.595 1.442.5±13.52.24<50.705113.00YES 2.4025.187 3.306±175.01<51.553523.00YES 2.441 6.529 4.506±175.01<51.566083.00YES 2.480 5.186 3.306±175.01<51.578543.00YES 2.402 1.139 1.302±132.00<50.618473.00YES 2.441 2.315 1.702±132.00<50.623473.00YES 2.480 0.468 1.111±121.58<50.499183.00YES 2.402 -4.086 0.39-4±1-30.50<50.155353.00YES 2.44 -4.305 0.37-4±1-30.50<50.156583.00YES 2.480 -3.366 0.46-4±1-30.50<50.157853.00YES 2.402 -4.053 0.39-4±1-30.50<50.155353.00YES 2.44 -4.195 0.38-4±1-30.50<50.156583.00YES 2.480 -6.401 0.23-6±1-50.32<50.099603.00YES GFSK π/4- DQPSK 8-DQPSK BLE 1M BLE 2M BT(Module2): Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402-0.471 0.90-1±101.00<50.309973.00YES 2.441 -2.202 0.60-2±1-10.79<50.248213.00YES 2.480 -1.841 0.65-2±1-10.79<50.250183.00YES 2.4021.594 1.441±121.58<50.491273.00YES 2.441 -0.091 0.980±111.26<50.393383.00YES 2.480 0.334 1.080±111.26<50.396513.00YES 2.402 2.276 1.691.5±12.51.78<50.551213.00YES 2.441 0.506 1.121.5±12.51.78<50.555673.00YES 2.480 2.607 1.822±132.00<50.628433.00YES 2.402 2.552 1.802±132.00<50.618473.00YES 2.44 1.168 1.312±132.00<50.623343.00YES 2.480 1.815 1.522±132.00<50.628433.00YES 2.402 2.801 1.912±132.00<50.618473.00YES 2.44 1.329 1.361±121.58<50.495143.00YES 2.480 1.777 1.511±121.58<50.499183.00YES GFSK π/4- DQPSK 8-DQPSK BLE 1M BLE 2M Conclusion: For the max result : 1.57854 ≤ 3.0 for 1g SAR, SAR is not required. Signature: Date: 2024-07-16 NAME AND TITLE (Please print or type): Alex li /Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen P.R. China.

Shenzhen Nanshan District Hi-tech lndustrial park(Central District)Sabrina Gene Therapy Park Building A 3rd Floor303 回到ZHEN SHI QIN XIN TECHNOL囚y co.' I.;四 P•2of6 旬，2022

SHEN ZHEN SHI QIN XIN TECHNOLOGY CO.,LTD Cable ANTENNA Rf ANT Series - R。HSc。mpliance 2.4 GHz ISM Band w。rkingFrequency m。del:CFDL·2 CONSTRUCTION Page 1 of6 Sep. 2022 Shenzhen Nanshan District Hi-tech lndustrial park(Central District)Sabrina Gene Therapy Park Building A 3rd Floor303

Report No.: S22080800508002 Version.1.3 Page 1 of 101 RADIO TEST REPORT FCC ID:2A9I2-CRHMBH001BF Product: Helmet mounted Bluetooth headset Trade Mark: CFMOTO, ZEEHO Model No.: CRHMBH001BF Family Model: N/A Report No.: S22080800508002 Issue Date: Nov 15. 2022 Prepared for ZHEJIANG CFMOTO POWER CO.,LTD. No.116, Wuzhou Road, Yuhang Economic Development Zone, Linping District, Hangzhou, Zhejiang Province, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel. 400-800-6106, 0755-2320 0050, 0755-2320 0090 Website: http://www.ntek.org.cn Report No.: S22080800508002 Version.1.3 Page 2 of 101 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 4 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 5 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 6 3.1 FACILITIES..................................................................................................................................................... 6 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 6 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 6 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 7 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 9 6 SETUP OF EQUIPMENT UNDER TEST ......................................................................................................... 10 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ..................................................................... 10 6.2 SUPPORT EQUIPMENT ............................................................................................................................... 11 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 12 7 TEST REQUIREMENTS .................................................................................................................................... 14 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 14 7.1.1 Applicable Standard .................................................................................................................................. 14 7.1.2 Conformance Limit ................................................................................................................................... 14 7.1.3 Measuring Instruments ............................................................................................................................. 14 7.1.4 Test Configuration .................................................................................................................................... 14 7.1.5 Test Procedure ........................................................................................................................................... 14 7.1.6 Test Results ................................................................................................................................................ 15 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 19 7.2.1 Applicable Standard .................................................................................................................................. 19 7.2.2 Conformance Limit ................................................................................................................................... 19 7.2.3 Measuring Instruments ............................................................................................................................. 20 7.2.4 Test Configuration .................................................................................................................................... 20 7.2.5 Test Procedure ........................................................................................................................................... 21 7.2.6 Test Results ................................................................................................................................................ 22 7.3 6DB BANDWIDTH ....................................................................................................................................... 33 7.3.1 Applicable Standard .................................................................................................................................. 33 7.3.2 Conformance Limit ................................................................................................................................... 33 7.3.3 Measuring Instruments ............................................................................................................................. 33 7.3.4 Test Setup .................................................................................................................................................. 33 7.3.5 Test Procedure ........................................................................................................................................... 33 7.3.6 Test Results ................................................................................................................................................ 33 7.4 DUTY CYCLE ..................…

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Report No.: S22080800508002 Version.1.3 Page 69 of 101 Tx. Spurious NVNT BLE 2402MHz Ant1 Emission Tx. Spurious NVNT BLE 2440MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 70 of 101 Tx. Spurious NVNT BLE 2440MHz Ant1 Emission Tx. Spurious NVNT BLE 2480MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 71 of 101 Tx. Spurious NVNT BLE 2480MHz Ant1 Emission Report No.: S22080800508002 Version.1.3 Page 72 of 101 MODULE 2 (1M): 8.1.11 Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit (dBm) Verdict NVNT BLE 2402 Ant 1 2.552 30 Pass NVNT BLE 2440 Ant 1 1.168 30 Pass NVNT BLE 2480 Ant 1 1.815 30 Pass Power NVNT BLE 2402MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 73 of 101 Power NVNT BLE 2440MHz Ant1 Power NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 74 of 101 8.1.12 Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT BLE 2402 Ant 1 1.0309 0.7202 0.5 Pass NVNT BLE 2440 Ant 1 1.0309 0.7214 0.5 Pass NVNT BLE 2480 Ant 1 1.0299 0.7218 0.5 Pass OBW NVNT BLE 2402MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 75 of 101 -6 dB BW NVNT BLE 2402MHz Ant1 OBW NVNT BLE 2440MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 76 of 101 -6 dB BW NVNT BLE 2440MHz Ant1 OBW NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 77 of 101 -6 dB BW NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 78 of 101 8.1.13 Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Max PSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNT BLE 2402 Ant 1 -12.862 8 Pass NVNT BLE 2440 Ant 1 -14.101 8 Pass NVNT BLE 2480 Ant 1 -13.431 8 Pass PSD NVNT BLE 2402MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 79 of 101 PSD NVNT BLE 2440MHz Ant1 PSD NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 80 of 101 8.1.14 Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 2402 Ant 1 -52.54 -20 Pass NVNT BLE 2480 Ant 1 -53.76 -20 Pass Band Edge NVNT BLE 2402MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 81 of 101 Band Edge NVNT BLE 2402MHz Ant1 Emission Band Edge NVNT BLE 2480MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 82 of 101 Band Edge NVNT BLE 2480MHz Ant1 Emission Report No.: S22080800508002 Version.1.3 Page 83 of 101 8.1.15 Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 2402 Ant 1 -48.09 -20 Pass NVNT BLE 2440 Ant 1 -46.43 -20 Pass NVNT BLE 2480 Ant 1 -46.06 -20 Pass Tx. Spurious NVNT BLE 2402MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 84 of 101 Tx. Spurious NVNT BLE 2402MHz Ant1 Emission Tx. Spurious NVNT BLE 2440MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 85 of 101 Tx. Spurious NVNT BLE 2440MHz Ant1 Emission Tx. Spurious NVNT BLE 2480MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 86 of 101 Tx. Spurious NVNT BLE 2480MHz Ant1 Emission Report No.: S22080800508002 Version.1.3 Page 87 of 101 MODULE 2 (2M): 8.1.16 Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit (dBm) Verdict NVNT BLE 2402 Ant 1 2.801 30 Pass NVNT BLE 2440 Ant 1 1.329 30 Pass NVNT BLE 2480 Ant 1 1.777 30 Pass Power NVNT BLE 2402MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 88 of 101 Power NVNT BLE 2440MHz Ant1 Power NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 89 of 101 8.1.17 Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT BLE 2402 Ant 1 2.057 1.2552 0.5 Pass NVNT BLE 2440 Ant 1 2.0542 1.1844 0.5 Pass NVNT BLE 2480 Ant 1 2.0522 1.192 0.5 Pass OBW NVNT BLE 2402MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 90 of 101 -6 dB BW NVNT BLE 2402MHz Ant1 OBW NVNT BLE 2440MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 91 of 101 -6 dB BW NVNT BLE 2440MHz Ant1 OBW NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 92 of 101 -6 dB BW NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 93 of 101 8.1.18 Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Max PSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNT BLE 2402 Ant 1 -15.256 8 Pass NVNT BLE 2440 Ant 1 -16.834 8 Pass NVNT BLE 2480 Ant 1 -16.182 8 Pass PSD NVNT BLE 2402MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 94 of 101 PSD NVNT BLE 2440MHz Ant1 PSD NVNT BLE 2480MHz Ant1 Report No.: S22080800508002 Version.1.3 Page 95 of 101 8.1.19 Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 2402 Ant 1 -53.27 -20 Pass NVNT BLE 2480 Ant 1 -54.53 -20 Pass Band Edge NVNT BLE 2402MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 96 of 101 Band Edge NVNT BLE 2402MHz Ant1 Emission Band Edge NVNT BLE 2480MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 97 of 101 Band Edge NVNT BLE 2480MHz Ant1 Emission Report No.: S22080800508002 Version.1.3 Page 98 of 101 8.1.20 Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 2402 Ant 1 -48.18 -20 Pass NVNT BLE 2440 Ant 1 -46.72 -20 Pass NVNT BLE 2480 Ant 1 -50.96 -20 Pass Tx. Spurious NVNT BLE 2402MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 99 of 101 Tx. Spurious NVNT BLE 2402MHz Ant1 Emission Tx. Spurious NVNT BLE 2440MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 100 of 101 Tx. Spurious NVNT BLE 2440MHz Ant1 Emission Tx. Spurious NVNT BLE 2480MHz Ant1 Ref Report No.: S22080800508002 Version.1.3 Page 101 of 101 Tx. Spurious NVNT BLE 2480MHz Ant1 Emission END OF REPORT