2AZWM-ADVQT8Magnetic Wireless Charger

This device complies with Part 15 of the FCC rules. Operation issubject to thefollowing two conditions: 1) this device may not causeharmful interference, and 2)this device must accept any interferencereceived, including interference that maycause undesired operation.Note: This equipment has been tested and found to comply with thelimits for a Class B digital device, pursuant to part 15 of the FCCRules. These limits are designed to provide reasonable protectionagainst harmful interference in a residential installation.Thisequipment generates uses and can radiate radio frequencyenergy and, if not installed and used in accordance with theinstructions, may cause harmful interference to radiocommunications.However, there isno guarantee that interference will not occur in particular installation.If this equipment does cause harmful interference to radio ortelevision reception, which can be determined by turning theequipment off and on, the user is encouraged to try to correct theinterference 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 fromthat to which the receiver is connected.--Consult the dealer or an experienced radio/TV technician for help.Changes or modifications not expressly approved by the partyresponsible for compliance could void the user’s authority to operatethe equipment.Radiation Exposure StatementThis device complies with FCC RF radiation exposure limits set forthfor an uncontrolled environment. This transmitter must not beco-located or operating in conjunction with any other antenna ortransmitter. During the operation of device a distance of 15 cmsurrounding the device and 20 cmabove the top surface of thedevice must be respected. FCC Statement:

MDiff Co.,LTD. #929, Dongmun Tower II, 358-25, Hosu-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea Date: 2021/5/13 FCC ID: 2AZWM-ADVQT8 Dear Sir/Madam, We, MDiff Co.,LTD., Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Magnetic Wireless Charger Model no.: ADVQ-T8, ADVQ-T8S, AD-CHAC01, AD-CHAC02, AD-CHAC03, AD-CHAC04, AD-CHAC05 Sincerely, Name/Title： Kim Mun/ CEO Company: MDiff Co.,LTD. Address: #929, Dongmun Tower II, 358-25, Hosu-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea Phone: 82319051149 Fax: 82319051149 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021/5/13 Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2AZWM-ADVQT8 ADVQ-T8, ADVQ-T8S, AD-CHAC01, AD-CHAC02, AD-CHAC03, AD-CHAC04, AD-CHAC05 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Kim Mun/ CEO Company: MDiff Co.,LTD. Address: #929, Dongmun Tower II, 358-25, Hosu-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea Phone: 82319051149 Fax: 82319051149 E-Mail: [email protected]

MDiff Co.,LTD. #929, Dongmun Tower II, 358-25, Hosu-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2021/5/13 To whom it may concern: We, MDiff Co.,LTD. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AZWM- ADVQT8 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Kim Mun/ CEO Company: MDiff Co.,LTD. Address: #929, Dongmun Tower II, 358-25, Hosu-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea Phone: 82319051149 Fax: 82319051149 E-Mail: [email protected]

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 4 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 4 Fig.5 Fig.6 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 4 Fig.7

Label Location: FCC ID: 2AZWM-ADVQT8

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Fig.5

Page 1 of 13 Report No.: TZ210302115-E2 FCC TEST REPORT Test report On Behalf of MDIFF Co.,LTD. For Magnetic Wireless Charger Model No.: ADVQ-T8, ADVQ-T8S, AD-CHAC01, AD-CHAC02, AD-CHAC03, AD-CHAC04, AD-CHAC05 FCC ID: 2AZWM-ADVQT8 Prepared for : MDIFF Co.,LTD. #929, Dongmin Tower2 358-25, Hosuro Ilsanding-gu, Goyangsi, gyenggi-do, Korea Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: Apr. 28, 2021 ~ May. 6, 2021 Date of Report: May. 7, 2021 Report Number: TZ210302115-E2 The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Page 2 of 13 Report No.: TZ210302115-E2 TEST RESULT CERTIFICATION Applicant’s name ................. : MDIFF Co.,LTD. Address ................................. : #929, Dongmin Tower2 358-25, Hosuro Ilsanding-gu, Goyangsi, gyenggi-do, Korea Manufacture's Name ............ : Shenzhen Whakin Innovation Technology Co.,Ltd. Address ................................. : South of the fourth floor, L bldg, jingtie technology industrial park, no.49 changjiang pu road, heao community, yuanshan street, Longgang district, Shenzhen city, China Product description Trade Mark ............................ : AIRDOCK Product name ........................... : Magnetic Wireless Charger Model and/or type reference : ADVQ-T8 Standards ............................. : FCC Rules and Regulations Part 2.1091, KDB680106 D01v03 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing Co.,Ltd takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ............................................ : Date (s) of performance of tests ............. : Apr. 28, 2021 ~ May. 6, 2021 Date of Issue ........................................... : May. 7, 2021 Test Result ............................................... : Pass Testing Engineer : (Nancy Li) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Page 3 of 13 Report No.: TZ210302115-E2 1. GENERAL INFORMATION 1.1 General Description of EUT Equipment Magnetic Wireless Charger Model Name ADVQ-T8 Serial No. ADVQ-T8S, AD-CHAC01, AD-CHAC02, AD-CHAC03, AD-CHAC04, AD-CHAC05 Model Difference All the same except for the model name Trade Mark AIRDOCK FCC ID 2AZWM-ADVQT8 Antenna Type Coil Antenna Antenna Gain 0dBi Operation frequency 110-205KHz Modulation Type ASK Power Rating Input: 5V2A, 9V2A, 12V1.5A Output: 5V1A, 7.5V1A, 9V1.12A, 9V1.67A Test Sample ID TZ210302115-1# Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. The EUT antenna is Coil Antenna. No antenna other than that furnished by the responsible party shall be used with the device. Page 4 of 13 Report No.: TZ210302115-E2 2. SUMMARY OF TEST RESULTS 2.1 Test procedures according to the technical standards: FCC KDB680106 D01 RF Exposure Wireless Charging Apps v03 FCC CFR 47 Standard Section Test Item Judgment Remark FCC CFR 47 part1, 1.1310 KDB680106 D01v03 (3)(3) Electric Field Strength (E) (V/m) PASS Magnetic Field Strength (H) (A/m) PASS 2.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 All emissions, radiated(<30M)(9KHz-30MHz) ±2.45dB 2 Temperature ±0.5°C 3 Humidity ±2% Page 5 of 13 Report No.: TZ210302115-E2 2.3 Test Instruments Description Brand Model No. Frequency Range Calibrated Date Calibrated Until Broadband Field Meter NARDA NBM-550 - Dec. 27, 2020 Dec. 27, 2021 Magnetic Field Meter NARDA ELT-400 1 – 400kHz Dec. 27, 2020 Dec. 27, 2021 Magnetic Probe NARDA HF-3061 300kHz – 30MHz Dec. 27, 2020 Dec. 27, 2021 Magnetic Probe NARDA HF-0191 27 – 1000MHz Dec. 27, 2020 Dec. 27, 2021 Broadband Field Meter NARDA NBM-550 - Dec. 27, 2020 Dec. 27, 2021 Electric Field Meter COMBINOVA EFM 200 5Hz – 400kHz Dec. 27, 2020 Dec. 27, 2021 E-Field Probe NARDA EF-0391 100kHz – 3GHz Dec. 27, 2020 Dec. 27, 2021 E-Field Probe NARDA EF-6091 100MHz – 60GHz Dec. 27, 2020 Dec. 27, 2021 NOTE: 1. The calibration interval of the above test instruments is 12 months. 2.4 Special Accessories No. Equipment Manufacturer 1 Intelligent wireless charging full function test module YBZ Page 6 of 13 Report No.: TZ210302115-E2 2.5 Operation of EUT during testing Test Modes: Mode 1 AC/DC Adapter (12V/1.5A) + EUT + Wireless charger tester (Load 15W) Record Mode 2 AC/DC Adapter (12V/1.5A) + EUT + Wireless charger tester (Load 10W) Record Mode 3 AC/DC Adapter (12V/1.5A) + EUT + Wireless charger tester (Load 7.5W) Record Mode 4 AC/DC Adapter (12V/1.5A) + EUT + Wireless charger tester (Load 5W) Record Mode 5 AC/DC Adapter (9V/2A) + EUT + Wireless charger tester (Load 15W) Pre-test Mode 6 AC/DC Adapter (9V/2A) + EUT + Wireless charger tester (Load 10W) Pre-test Mode 7 AC/DC Adapter (9V/2A) + EUT + Wireless charger tester (Load 7.5W) Pre-test Mode 8 AC/DC Adapter (9V/2A) + EUT + Wireless charger tester (Load 5W) Pre-test Mode 9 AC/DC Adapter (5V/2A) + EUT + Wireless charger tester (Load 15W) Pre-test Mode 10 AC/DC Adapter (5V/2A) + EUT + Wireless charger tester (Load 10W) Pre-test Mode 11 AC/DC Adapter (5V/2A) + EUT + Wireless charger tester (Load 7.5W) Pre-test Mode 12 AC/DC Adapter (5V/2A) + EUT + Wireless charger tester (Load 5W) Pre-test Note: All test modes were pre-tested, but we only recorded the worst case in this report. Page 7 of 13 Report No.: TZ210302115-E2 3. MAXIMUM PERMISSIBLE EXPOSURE Limit of Maxim…

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Report No.: TZ210302115-E1 Page 1 of 27 FCC TEST REPORT Test report On Behalf of MDiff Co.,LTD. For Magnetic Wireless Charger Model No.: ADVQ-T8, ADVQ-T8S, AD-CHAC01, AD-CHAC02, AD-CHAC03, AD-CHAC04, AD-CHAC05 FCC ID: 2AZWM-ADVQT8 Prepared for : MDiff Co.,LTD. #929, Dongmun Tower II, 358-25, Hosu-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: Apr. 28, 2021 ~ May. 6, 2021 Date of Report: May. 7, 2021 Report Number: TZ210302115-E1 The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: TZ210302115-E1 Page 2 of 27 TEST RESULT CERTIFICATION Applicant’s name ................. : MDiff Co.,LTD. Address ................................. : #929, Dongmun Tower II, 358-25, Hosu-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea Manufacture's Name ............ : Shenzhen Whakin Innovation Technology Co.,Ltd. Address ................................. : South Area 4/F, L Type Building, Jingtie Technology Industrial Park, No.49 Changjiangpu RD, Heao Community, Yuanshan Street, Longgang District, Shenzhen, China Product description Trade Mark ............................ : AIRDOCK Product name ........................... : Magnetic Wireless Charger Model and/or type reference : ADVQ-T8 Standards ............................. : FCC Rules and Regulations Part 15 Subpart C ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing Co.,Ltd takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ............................................ : Date (s) of performance of tests ............. : Apr. 28, 2021 ~ May. 6, 2021 Date of Issue ........................................... : May. 7, 2021 Test Result ............................................... : Pass Testing Engineer : (Nancy Li) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ210302115-E1 Page 3 of 27 Table of Contents Page 1 TEST SUMMARY ................................................................................................ 4 1.1 TEST PROCEDURES AND RESULTS ........................................4 1.2 TEST FACILITY ............................................................................4 1.3 MEASUREMENT UNCERTAINTY ...............................................4 2 GENERAL INFORMATION ................................................................................. 5 2.1 General Description of EUT ..........................................................5 2.2 Operation of EUT during testing ...................................................6 2.3 Description of Test Setup ..............................................................6 3 Measurement Instruments List ............................................................................ 7 4 CONDUCTED EMISSION TEST ......................................................................... 8 4.1 Block Diagram of Test Setup ........................................................8 4.2 Conducted Power Line Emission Limit .........................................8 4.3 Test Procedure .............................................................................8 4.4 Test Result ....................................................................................9 5 Bandwidth .......................................................................................................... 11 5.1 Block Diagram of Test Setup ......................................................11 5.2 Rules and specifications .............................................................11 5.3 Test Procedure ...........................................................................11 5.4 Test Result ..................................................................................12 6 RADIA TED EMISSIONS ................................................................................... 13 6.1 Block Diagram of Test Setup ......................................................13 6.2 Rules and specifications .............................................................14 6.3 Test Procedure ...........................................................................15 6.4 Test Result ..................................................................................15 7 ANTENNA REQUIREMENT .............................................................................. 18 8 PHOTOGRAPH OF TEST ................................................................................. 19 8.1 Radiated Emission ......................................................................19 8.2 Conducted Emission ...................................................................20 9 PHOTOGRAPH OF EUT ................................................................................... 21 Report No.: TZ210302115-E1 Page 4 of 27 1 TEST SUMMARY 1.1 TEST PROCEDURES AND RESULTS FCC Rules Part DESCRIPTION OF TEST RESULT 15.207 CONDUCTED EMISSIONS TEST COMPLIANT 15.209 RADIATED EMISSION TEST COMPLIANT 15.215(c) OCCUPIED BANDWIDTH MEASUREMENT COMPLIANT 15.203 ANTENNA REQUIREMENT COMPLIANT 1.2 TEST FACILITY Test Firm : Shenzhen Tongzhou Testing Co.,Ltd Address 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China 1.3 MEASUREMENT UNCERTAINTY Measurement Uncertainty Conducted Emission Expanded Uncertainty(9kHz-30MHz) = 2.23dB, k=2 Radiated emission expanded uncertainty(9kHz-30MHz) = 3.08dB, k=2 Radiated emission expanded uncertainty(30MHz-1000MHz) = 4.42dB,…

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 2 TEST SETUP PHOTOS OF THE EUT Radiated Emission Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AZWM-ADVQT8 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 2 Conducted Emission