2AOK9-A400Dash Cam

Rev 11/20/07 70mai Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AOK9-A400 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram, Schematics, Operational Description, Block Diagram Operation Description schematic diagram The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Sincerely, Cindy Lv / Manager 70mai Co.,Ltd. Date: 2021-02-27

Declaration on model difference We the undersigned hereby confirm that any of our production units bearing the following model numbers are identical in circuitry and electrical, mechanical and physical construction; the only difference is the model name for trading purpose. FCC ID: 2AOK9-A400 Production name Trade name Model no. Dash Cam N/A A400, A400-1 Confirmed by 70mai Co.,Ltd. Cindy Lv / Manager 70mai Co.,Ltd. Date: 2021-02-27

70mai Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2021-02-27 SUBJECT: FCC Application for FCC ID: 2AOK9-A400 To Whom It May Concern: We, the undersigned, hereby authorize Lisa Wang at EMTEK (SHENZHEN) CO., LTD.on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by EMTEK (SHENZHEN) 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, Cindy Lv / Manager 70mai Co.,Ltd.

EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 EUT View 3 EUT View 4 EUT View 5 EUT View 6 EUT View 7 ----------------The end----------------

M/N: A400 Label: Label Product : Dash CamModel : A400Input：5V 2AFCC ID：2AOK9-A400Manufacturer：70mai Co.,Ltd. M/N: A400-1 Label: Label Product : Dash CamModel : A400-1Input：5V 2AFCC ID：2AOK9-A400Manufacturer：70mai Co.,Ltd.

EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1: EUT Housing and Board View 2: EUT Housing and Board View 3: EUT Housing and Board View 4: WIFI ANT. EUT Housing and Board View 5: EUT Housing and Board View 5: Charger: Battery: ----------------The end----------------

FCC ID : 2AOK9-A400 RF EXPOSURE EVALUATION According to FCC 1.1310: 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) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in 20cm Pd the limit of MPE, 1mW/cm 2 . If we know the maximum gain of the nd total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. 11.2 Measurement Result ： Mode Max Measured power (dBm) Max tune-up power (dBm) Antenna gain Antenna Gain Numeric Evaluation result (mW/cm2 ) Power density Limits (mW/cm2 ) WIFI 13.38 15 1.18 1.17 0.007378 1

Report No. ES210119015W Page 1 of 48 Ver.1.0 TEST REPORT Product Name ： Dash Cam Model Number ： A400, A400-1 FCC ID ： 2AOK9-A400 Prepared for : 70mai Co.,Ltd. Address : Room 2220, building 2, No.588, Zixing road, MinHang District, Shanghai. CHINA Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ES210119015W Date(s) of Tests : Jan. 19, 2021 to Feb. 22, 2021 Date of issue : Feb. 22, 2021 Report No. ES210119015W Page 2 of 48 Ver.1.0 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 EUT TECHNICAL DESCRIPTION .................................................................................................................... 4 3 SUMMARY OF TEST RESULT ........................................................................................................................... 5 4 TEST METHODOLOGY ...................................................................................................................................... 6 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................................................................ 6 4.2 MEASUREMENT EQUIPMENT USED ....................................................................................................... 6 4.3 DESCRIPTION OF TEST MODES ................................................................................................................ 7 5 FACILITIES AND ACCREDITATIONS ............................................................................................................. 8 5.1 FACILITIES.................................................................................................................................................... 8 5.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................ 8 6 TEST SYSTEM UNCERTAINTY ........................................................................................................................ 9 7 SETUP OF EQUIPMENT UNDER TEST ......................................................................................................... 10 7.1 RADIO FREQUENCY TEST SETUP 1 ........................................................................................................ 10 7.2 RADIO FREQUENCY TEST SETUP 2 ........................................................................................................ 10 7.3 CONDUCTED EMISSION TEST SETUP .................................................................................................... 11 7.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM .................................................................... 12 7.5 SUPPORT EQUIPMENT.............................................................................................................................. 12 8 TEST REQUIREMENTS .................................................................................................................................... 13 8.1 DTS (6DB) BANDWIDTH ........................................................................................................................... 13 8.2 MAXIMUM PEAK CONDUCTED OUTPUT POWER .............................................................................. 20 8.3 MAXIMUM POWER SPECTRAL DENSITY ............................................................................................. 22 8.4 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS ............................................ 29 8.5 RADIATED SPURIOUS EMISSION ........................................................................................................... 34 8.6 CONDUCTED EMISSIONS TEST .............................................................................................................. 46 8.7 ANTENNA APPLICATION ......................................................................................................................... 47 Report No. ES210119015W Page 3 of 48 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : 70mai Co.,Ltd. Address : Room 2220, building 2, No.588, Zixing road, MinHang District, Shanghai. CHINA Manufacturer : 70mai Co.,Ltd. Address : Room 2220, building 2, No.588, Zixing road, MinHang District, Shanghai. CHINA EUT : Dash Cam Model Name : A400, A400-1 Trademark : N/A Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2 , Subpart J FCC 47 CFR Part 15 , Subpart C PASS The above equipment was tested by EMTEK (SHENZHEN) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247 The test results of this report relate only to the tested sample identified in this report. Date of Test : Jan. 19, 2021 to Feb. 22, 2021 Prepared by : Qiang Wang /Editor Reviewer : Joe Xia/Editor Approve & Authorized Signer : Lisa Wang/Manager Report No. ES210119015W Page 4 of 48 Ver.1.0 2 EUT TECHNICAL DESCRIPTION Note: for more details, please refer to the User’s manual of the EUT. Characteristics Description Product Dash Cam Model Number A400, A400-1 (These models are identical in circuitry and electrical, mechanical and physical construction; only with the model named different for trading purpose. Test sample model: A400-1.) Sample 1# IEEE 802.11 WLAN Mode Supported 802.11b 802.11g 802.11n(20MHz channel bandwidth) 802.11n(40MHz channel bandwidth) Data Rate 802.11 b:1,2,5.5,11Mbps; 802.11 g:6,9,12,18,24,36,48,54Mbps; 802.11n(HT20): up to 72.2Mbps; 802.11n(HT40): up to 150Mbps; Modulation DSSS with DBPSK/DQPSK/CCK for 802.11b; OFDM with BPSK/QPSK/16QAM/64QAM for 802.11g/n; Operati…

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TEST SETUP PHOTOGRAPHS 1.1. Photos of Radiation Emission Measurement Spurious Emission Test Setup (Below 1GHz) Spurious Emission Test Setup (Above 1GHz) ----------------The end----------------