2A4UD-S300Wireless charger 3 in 1

FCC WARNING 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. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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. RF warning for WPT device: The equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. During the operation of device a distance of 15cm surrounding the device and 20 cm above the top surface of the device must be respected.

C5266091_X8_Ed.1 1/1 Letter of Authorization <Shenzhen Yishi Creative Technology Co., Ltd.> Company: Shenzhen Yishi Creative Technology Co., Ltd. Address: Room 301, building 5, Hangcheng Zhigu Zhongcheng future industrial, intersection of Hangcheng Avenue, Bao'an District, Shenzhen, Guangdong, China Product Name: Wireless charger 3 in 1 Model Number: S300 FCC Identifier:2A4UD-S300 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Liao yifeng Date: 2022-03-15 Title: N/A Signature of applicant:

C5266091_X10_Ed.1 1/1 < Shenzhen Yishi Creative Technology Co., Ltd. > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2022-03-15 Subject: Request for Confidentiality FCC ID: 2A4UD-S300 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality ID Label/Location No No Attestation Statement No No External Photos No Block Diagram Schematics Test Report No No Test Setup Photos No User’s Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Liao yifeng Title: N/A

EUT PHOTO(External Photos)

Label and label location Wireless charger 3 in 1 FCC ID:2A4UD-S300

EUT PHOTO(Internal Photos) Coil 1 Coil 3 Coil 2 ※※※※※ END OF REPORT ※※※※※

FCC ID:2A4UD-S300 Product Name: Wireless charger 3 in1 Product Model No.: S300 Test Auxiliary: Phone, TWS, Watch Model No.: DL01, DL02, DL03 Transmitting mode Keep the EUT in continuously wireless charging mode Power supply: Input: DC 9V 2A,12V 2A Wireless Output Phone: 10W Max Wireless Output TWS: 5W Max Wireless Output Watch: 3W Max Test Modes: Mode 1 AC/DC Adapter (9V/2A) + EUT + Mobile Phone XIAOMI (10W) Mode 2 AC/DC Adapter (9V/2A) + EUT + Mobile Phone XIAOMI (7.5W) Mode 3 AC/DC Adapter (9V/2A) + EUT + Mobile Phone XIAOMI (5W) Mode 4 AC/DC Adapter (9V/2A) + EUT + Mobile Phone XIAOMI (3W) Mode 5 AC/DC Adapter (9V/2A) + EUT + TWS XIAOMI (5W) Mode 6 AC/DC Adapter (9V/2A) + EUT + Watch XIAOMI (3W) Mode 7 AC/DC Adapter (9V/2A) + EUT + Mobile Phone XIAOMI (10W)+ TWS XIAOMI (5W) Mode 8 AC/DC Adapter (9V/2A) + EUT + Mobile Phone XIAOMI (10W)+ Watch XIAOMI (3W) Mode 9 AC/DC Adapter (9V/2A) + EUT + Mobile Phone XIAOMI (10W)+ TWS XIAOMI (5W)+ Watch XIAOMI (3W) Mode 10 AC/DC Adapter (12V/2A) + EUT + Mobile Phone XIAOMI (10W) Mode 11 AC/DC Adapter (12V/2A) + EUT + Mobile Phone XIAOMI (7.5W) Mode 12 AC/DC Adapter (12V/2A) + EUT + Mobile Phone XIAOMI (5W) Mode 13 AC/DC Adapter (12V/2A) + EUT + Mobile Phone XIAOMI (3W) Mode 14 AC/DC Adapter (12V/2A) + EUT + TWS XIAOMI (5W) Mode 15 AC/DC Adapter (12V/2A) + EUT + Watch XIAOMI (3W) Mode 16 AC/DC Adapter (12V/2A) + EUT + Mobile Phone XIAOMI (10W)+ TWS XIAOMI (5W) Mode 17 AC/DC Adapter (12V/2A) + EUT + Mobile Phone XIAOMI (10W)+ Watch XIAOMI (3W) Mode 18 AC/DC Adapter (12V/2A) + EUT + Mobile Phone XIAOMI (10W)+ TWS XIAOMI (5W)+ Watch XIAOMI (3W) Record Note: All test modes were pre‐tested, but we only recorded the worst case in this report. RF Exposure Evaluation 1 Measuring Standard KDB 680106 RF Exposure Wireless Charging Apps v03r01 2 Requirements According to the item 5 of KDB 680106 v03r01: Inductive wireless power transfer applications that meet all of the following requirements are excluded from submitting an RF exposure evaluation. (1) Power transfer frequency is less than 1MHz. (2) Output power from each primary coil is less than or equal to 15 watts. (3) The system may consist of more than one source primary coils, charging one or more clients. If more than one primary coil is present, the coil pairs may be powered on at the same time. (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 anywhere at or beyond 15 cm surrounding the device, and 20 cm away from the surface from all coils that by design can simultaneously transmit, and while those coils are simultaneously energized, are demonstrated to be less than 50% of the applicable MPE limit. Remark: Meet all the above requirements. Limits 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) 3 Test Setup 4 Test Procedure 1) The RF exposure test was performed in anechoic chamber. 2) The measurement probe was placed at test distance (15 cm from all sides and 20 cm from the top) which is between the edge 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 v03r01. Remark：The EUT’s test position A, B, C, D and E is valid for the E and H field measurements. 5 Test Instruments list Test Equipment Manufacturer Model No. SN. Cal.Date (mm-dd-yy) Cal.Due date (mm-dd-yy) Exposure Level Tester Narda ELT-400 N-0231 June. 26 2021 June. 25 2022 Magnetic field probe 100cm 2 Narda ELT probe 100cm 2 M0675 June. 26 2021 June. 25 2022 Isotropic Electric field probe Narda EP-601 611WX70332June. 26 2021 June. 25 2022 6 Test Result E-Filed Strength at 15 cm from the edges surrounding the EUT (V/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (V/m) 0.115-0.205 0.45 0.56 0.62 0.73 614 E-Filed Strength at 20 cm from the top of the EUT (V/m) Frequency Range (MHz) Test Position E Limits (V/m) 0.115-0.205 0.79 614 H-Filed Strength at 15 cm from the edges surrounding the EUT (A/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (A/m) 0.115-0.205 0.12 0.14 0.16 0.11 1.63 H-Filed Strength at 20 cm from the top of the EUT (A/m) Frequency Range (MHz) Test Position E Limits (A/m) 0.115-0.205 0.21 1.63 7 Test Set-up Photo

Project No.: ZKT-2202170778E Page 1 of 21 FCC TEST REPORT FCC ID:2A4UD-S300 Report Number. .............................. : ZKT-2202170778E Date of Test ........................................ Feb. 17, 2022 to Feb. 22, 2022 Date of issue .................................... : Feb. 22, 2022 Total number of pages ...................... 21 Test Result ..................................... : PASS Testing Laboratory. ........................ : Shenzhen ZKT Technology Co., Ltd. Address .......................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name ......................... : Shenzhen Yishi Creative Technology Co., Ltd. Address .......................................... : Room 301, building 5, Hangcheng Zhigu Zhongcheng future industrial, intersection of Hangcheng Avenue, Bao'an District, Shenzhen, Guangdong, China Manufacturer's name ................... : Shenzhen Yishi Creative Technology Co., Ltd. Address .......................................... : Room 301, building 5, Hangcheng Zhigu Zhongcheng future industrial, intersection of Hangcheng Avenue, Bao'an District, Shenzhen, Guangdong, China Test specification: Standard ........................................... : FCC CFR Title 47 Part 15 Subpart C Test procedure ................................. : / Non-standard test method ............. : N/A Test Report Form No. .................... : TRF-EL-107_V0 Test Report Form(s) Originator .... : ZKT Testing Master TRF .................................... : Dated: 2020-01-06 This device described above has been tested by ZKT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................. : Wireless charger 3 in 1 Trademark ...................................... : N/A Model/Type reference ...................... : S300 Ratings ............................................. : Input: DC 9V 2A,12V 2A Wireless Output Phone: 10W Max Wireless Output TWS: 5W Max Wireless Output Watch: 3W Max Project No.: ZKT-2202170778E Page 2 of 21 Testing procedure and testing location: Testing Laboratory ................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... :1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Alen He Tested by (name + signature) .................... : Joe Liu Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: ZKT-2202170778E Page 3 of 21 TABLE OF CONTENTS 1. VERSION ....................................................................................................................................... 4 2. TEST SUMMARY ........................................................................................................................ 5 2.1 TEST FACILITY .................................................................................................................................... 6 2.2 MEASUREMENT UNCERTAINTY .................................................................................................... 6 3. GENERAL INFORMATION ...................................................................................................... 7 3.1 GENERAL DESCRIPTION OF EUT ................................................................................................. 7 3.2 Test mode .............................................................................................................................................. 7 3.3 Block Diagram of EUT Configuration ................................................................................................ 8 3.4 Test Conditions ..................................................................................................................................... 8 3.5 Description Of Support Units (Conducted Mode) ............................................................................ 8 3.6 EQUIPMENTS LIST FOR ALL TEST ITEMS .................................................................................. 9 4. CONDUCTED EMISSION TEST ............................................................................................. 10 4.1 CONDUCTED EMISSION MEASUREMENT ................................................................................ 10 4.1.1 POWER LINE CONDUCTED EMISSION Limits........................................................................ 10 4.1.2 TEST PROCEDURE ...................................................................................................................... 10 4.1.3 DEVIATION FROM TEST STANDARD ....................................................................................... 10 4.1.4 TEST SETUP ................................................................................................................................... 11 4.1.5 EUT OPERATING CONDITIONS ................................................................................................. 11 4.1.6 Test Result ....................................................................................................................................... 11 5. RADIATED EMISSION MEASUREMENT ............................................................................ 14 5.1 Radiated Emission Limits .................................................................................................................. 14 5.2 Anechoic Chamber Test Setup Diagram ........................................................................................ 15 5.3 Test Procedur…

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EUT TEST PHOTO