2AUOJA-WPADWireless Charging Pad

555 55 FCC Statement Changes or modications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. If 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 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. A-WPAD Operating frequency 114.26 KHz -151.11KHz

SHENZHEN CHIFROG TECHNOLOGY CO., LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date:2020-04-30 Subject; Request for Long Term Confidentiality FCC ID: 2AUOJA-WPAD 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 Parts List Operational Description Tune-up Procedure 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: YUNZHENG JIANG Title: General Manager

SHENZHEN CHIFROG TECHNOLOGY CO., LTD 3/F, BLD B19, No.1 Industrial Zone of Fenghuang, Fengye 5th Road, Fuyong, Bao'an, Shenzhen, Guangdong, China Statement Product: Wireless Charging Pad Model: A-WPAD Additional Model: A-WPAD-01, A-WPAD-02, A-WPAD-03, A-WPAD-04, A-WPAD-05, A-WPAD-06 Trademark: We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 2020-04-30 Name: YUNZHENG JIANG Company Name: SHENZHEN CHIFROG TECHNOLOGY CO., LTD Address: 3/F, BLD B19, No.1 Industrial Zone of Fenghuang, Fengye 5th Road, Fuyong, Bao'an, Shenzhen, Guangdong, China Tel / Fax: +86-0755-23321686/+86-0755-23321686 E-Mail: [email protected]

SHENZHEN CHIFROG TECHNOLOGY CO., LTD Agent Authorization Company: SHENZHEN CHIFROG TECHNOLOGY CO., LTD Address: 3/F, BLD B19, No.1 Industrial Zone of Fenghuang, Fengye 5th Road, Fuyong, Bao'an, Shenzhen, Guangdong, China Product Name: Wireless Charging Pad Model Number(s): A-WPAD, A-WPAD-01, A-WPAD-02, A-WPAD-03, A-WPAD-04, A- WPAD-05, A-WPAD-06 Product Description: Wireless Charging Pad We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2020-04-30 Name: YUNZHENG JIANG Title: General Manager Company: SHENZHEN CHIFROG TECHNOLOGY CO., LTD

Page 1 of 4 Appendix B: Photographs of EUT Product: Wireless Charging Pad Model: A-WPAD External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

Label Artwork and Location Model: A-WPAD Label: Size: L*W=24*26mm Location

Page 1 of 3 Appendix B: Photographs of EUT Product: Wireless Charging Pad Model: A-WPAD Internal Photos Antenna Page 2 of 3 Page 3 of 3

RF Exposure Considerations 1. Measuring Standard KDB 680106 D01 RF Exposure Wireless Charging Apps v03 2. Requirements According to the item 5.b of KDB 680106 D01v03: Inductive wireless power transfer applications with supporting field strength results and meeting all of the following requirements are not required to submit a KDB inquiry for devices approved using SDoC or a PAG for equipment approved using certification to address RF exposure compliance. However, the responsible party is required to keep a copy of the test report in accordance with KDB 865664 D02. A copy of the test report is to be submitted with the application if the device is approved using certification. (1) Power transfer frequency is less than 1 MHz. (2) Output power from each primary coil is less than or equal to 15 watts. (3) The transfer system includes only single primary and secondary coils. This includes charging systems that may have multiple primary coils and clients that are able to detect and allow coupling only between individual pairs of coils. (4) Client device is placed directly in contact with the transmitter. (5) Mobile exposure conditions only (portable exposure conditions are not covered by this exclusion). (6) The aggregate H-field strengths at 15 cm surrounding the device and 20 cm above the top surface from all simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit. Limits For Maximum Permissible Exposure (MPE) 3. Test Setup Note: Measurements should be made from all sides and the top of the primary/client pair, with the 15cm measured from the center of the probe(s) to the edge of the device. 4.Test Procedure 1)The RF exposure test was performed in anechoic chamber. 2)The measurement probe was placed at 15 cm surrounding the device and 20 cm above the top surface of the charger and the geometric center of probe. 3)The highest emission level was recorded and compared with limit as soon as measurement of each points (A, B, C, D, E) were completed. 4)The EUT was measured according to the dictates of KDB 680106 D01 v03. Remark; The EUT’s test position A, B, C, D and E is valid for the E and H field measurements. 5. Test Equipment List EquipmentManufacturerModel No.Calibration Due Magnetic field meterNARDAELT-400Jul. 25, 2020 6. Test Result E-Filed Strength 15 cm surrounding the device and 20 cm above the top surface of the EUT (V/m) Frequency Range (KHz) Operation condition Test Position A Test Position B Test Position C Test Position D Test Position E Reference Limits Test (V/m) Limits Test (V/m) 114.26~ 151.11 Full load1.431.651.541.711.48307614 114.26~ 151.11 Half load1.251.361.271.421.23307614 114.26~ 151.11 No load0.740.870.820.760.85307614 H-Filed Strength 15 cm surrounding the device and 20 cm above the top surface of the EUT (A/m) Frequency Range (KHz) Operation condition Test Position A Test Position B Test Position C Test Position D Test Position E Reference Limits Test (A/m) Limits Test ((A/m) 114.26~ 151.11 Full load0.2030.1850.1940.1970.1810.8151.63 114.26~ 151.11 Half load0.1760.1630.1560.1610.1580.8151.63 114.26~ 151.11 No load0.1140.1180.1070.1120.1090.8151.63 According to KDB 680106 D01 v03 section 5, b, satisfy the following conditions. Requirement of KDB 680106 D01Yes/NoDescription Power transfer frequency is less than 1MHzYes The device operate in the frequency range 114.26 KHz -151.11KHz Output power from each primary coil is less than or equal to 15 watts Yes The maximum output power of the primary coil is 10W. The transfer system includes only single primary and secondary coils.This includes charging system that may have multiple primary coils and clients that are able to detect and allow coupling only betmeen individual pairs of coils. Yes The transfer system includes single coil that is able to detect receiver device. Client device is placed directly in contact with the transmitter. Yes Client device is placed directly in contact with the transmitter. Mobile exposure conditions only(portable exposure conditions are not covered by this exclusion). YesMobile exposure conditions only The aggregate H-field strengths at 15 cm surrounding the device and 20cm above the top surface from all simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit. Yes The EUT H-filed strengths at 15 cm surrounding the device and 20cm above the top surface from all simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit. 7. Test Set-up Photo

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2AUOJA-WPAD Product: Wireless Charging Pad Model No.: A-WPAD Additional Model No.: A-WPAD-01, A-WPAD-02, A-WPAD-03, A-WPAD-04, A-WPAD-05, A-WPAD-06 Trade Mark: Report No.: TCT200424E010 Issued Date: Apr. 30, 2020 Issued for: SHENZHEN CHIFROG TECHNOLOGY CO., LTD 3/F, BLD B19, No.1 Industrial Zone of Fenghuang, Fengye 5th Road, Fuyong, Bao'an, Shenzhen, Guangdong, China Issued By: Shenzhen Tongce Testing Lab. 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District, Shenzhen, Guangdong, China TEL: +86-755-27673339 FAX: +86-755-27673332 Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab. This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT200424E010 Page 2 of 29 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TABLE OF CONTENTS 1. Test Certification ..................................................................................... 3 2. Test Result Summary .............................................................................. 4 3. EUT Description ....................................................................................... 5 4. General Information ................................................................................. 6 4.1. Test environment and mode ................................................................................. 6 4.2. Description of Support Units ................................................................................ 6 5. Facilities and Accreditations .................................................................. 7 5.1. Facilities ................................................................................................................. 7 5.2. Location ................................................................................................................. 7 5.3. Measurement Uncertainty ..................................................................................... 7 6. Test Results and Measurement Data ..................................................... 8 6.1. Antenna requirement ............................................................................................ 8 6.2. Conducted Emission ............................................................................................. 9 6.3. Radiated Spurious Emission Measurement ...................................................... 13 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT200424E010 Page 3 of 29 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: Wireless Charging Pad Model No.: A-WPAD Additional Model No.: A-WPAD-01, A-WPAD-02, A-WPAD-03, A-WPAD-04, A-WPAD-05, A-WPAD-06 Trade Mark: Applicant: SHENZHEN CHIFROG TECHNOLOGY CO., LTD Address: 3/F, BLD B19, No.1 Industrial Zone of Fenghuang, Fengye 5th Road, Fuyong, Bao'an, Shenzhen, Guangdong, China Manufacturer: SHENZHEN CHIFROG TECHNOLOGY CO., LTD Address: 3/F, BLD B19, No.1 Industrial Zone of Fenghuang, Fengye 5th Road, Fuyong, Bao'an, Shenzhen, Guangdong, China Date of Test: Apr. 26, 2020 – Apr. 29, 2020 Applicable Standards: FCC CFR Title 47 Part 15 Subpart C The above equipment has been tested by Shenzhen Tongce Testing Lab. and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Tested By: Date: Apr. 29, 2020 Kevin Huang Reviewed By: Date: Apr. 30, 2020 Beryl Zhao Approved By: Date: Apr. 30, 2020 Tomsin Report No.: TCT200424E010 Page 4 of 29 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Antenna requirement §15.203 PASS AC Power Line Conducted Emission §15.207 PASS Spurious Emission §15.209(a)(f) PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT200424E010 Page 5 of 29 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product: Wireless Charging Pad Model No.: A-WPAD Additional Model No.: A-WPAD-01, A-WPAD-02, A-WPAD-03, A-WPAD-04, A-WPAD-05, A-WPAD-06 Trade Mark: Operation Frequency: 114.26 KHz -151.11KHz Modulation Technology: Load modulation Antenna Type: Inductive loop coil Antenna Power Supply: DC 9V Remark: All models above are identical in interior structure, electrical circuits and components, just color is different for the marketing requirement. Report No.: TCT200424E010 Page 6 of 29 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 4. General Information 4.1. Test environment and mode Operating Environment: Condition Conducted Emission Radiated Emission Temperature: 25.0 C 25.0 C Humidity: 55 % RH 55 % RH Atmospheric Pressure: 1010 mbar 1010 mbar Test Mode: Engineering mode: Keep the EUT in continuous transmitting by select channel and modulations(The value of duty cycle is 98.46%) with Fully-charged battery. The sample was placed 0.8m & 1.5m for the measurement below & above 1GHz above the ground plane of 3m chamber. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT continuously working, investigated all operating modes, rotated about all 3 axis (X, Y & Z) and co…

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Page 1 of 2 Appendix A: Photographs of Test Setup Product: Wireless Charging Pad Model: A-WPAD Radiated Emission Page 2 of 2 Conducted Emission