2A5XO-BY-528VPortable Watch Charger

• Product Description Product Specifications: TYPE-C to iWatch Wireless Charger Input Interface: Type-C Female Input Voltage: 4.9-5.5V Input Current: 2A Max Wireless Charging Output Power: 2.5W Max This product is a TYPE-C to iWatch wireless charger that utilizes the MicroCMS8S6990NA dedicated wireless charging solution. It is compatible with Apple Watch Series 2, Apple Watch Series 3, Apple Watch Series 4, Apple Watch Series 5, Apple Watch Series 6, Apple Watch Series 7, Apple Watch Series 8, Apple Watch Series 9, Apple Watch Ultra, and Apple Watch SE. The product supports automatic output power adjustment, voltage protection, temperature protection, and FOD (Foreign Object Detection). This product supports both Type-C input and output functions and automatically detects Type-C insertion and removal. It supports wireless charging for Apple Watch, allowing you to charge your watch. A single touch of the touch button activates the power bank, while a double touch turns it off. The power bank will turn off if there is no load for over 32 seconds. In case of detecting foreign objects within the first 30 seconds of turning on, the power bank will automatically turn off. If the foreign object is removed within 30 seconds, wireless charging will resume after 30 seconds. In low battery mode, when the battery level is below 2%, the power bank will shut down. With a battery level of 2%-20%, the blue light will flash, and the battery level will be indicated by 4 LED lights as follows: 1 light on (25%), 2 lights on (50%), 3 lights on (75%), and 4 lights on (100%). • FCC Warnning: 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 againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body.

Shenzhen Boyi Electronics Co., Ltd. 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023/11/10 U.S. Agent Designation Shenzhen Boyi Electronics Co., Ltd. acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2A5XO-BY-528V): Name and company of U.S. agent: GSS SERVICE INC Physical U.S. address of agent: 6547 N Academy Blvd #2266 Colorado Springs COLORADO 80918 United States FRN of U.S. agent: 0033402082 Email address of U.S. agent: [email protected] GSS SERVICE INC acknowledges their obligation to accept service of process on behalf of Shenzhen Boyi Electronics Co., Ltd. Shenzhen Boyi Electronics Co., Ltd. with the FRN [0032156168] accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission- related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Peter Peng Manager Shenzhen Boyi Electronics Co., Ltd. Signature Michoux Logan PM GSS SERVICE INC 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

Sincerely, Name/Title： Peter Peng/Manager Company: Shenzhen Boyi Electronics Co., Ltd. Address: 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Phone: 18565763504 Fax: 18565763504 E-Mail: [email protected]

FCC ID: 2A5XO-BY-528V External Photos of the EUT Photo 1 Photo 2 Photo 3 FCC ID: 2A5XO-BY-528V Photo 4 Photo 5 Photo 6

Label and Location Size: L: 2.0cm*W: 1.0cm Label and Location FCC ID : 2A5XO-BY-528V

FCC ID: 2A5XO-BY-528V Internal Photos of the EUT Photo 1 Photo 2 Photo 3 Loop coil antenna FCC ID: 2A5XO-BY-528V Photo 4 Photo 5 Photo 6 FCC ID: 2A5XO-BY-528V Photo 7 Photo 8 Photo 9 FCC ID: 2A5XO-BY-528V Photo 10 Photo 11 Photo 12

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT Report Reference No. ..................... : FCC ID............................................. : CTA23110100702 2A5XO-BY-528V Compiled by ( position+printed name+signature) . : File administrators Zoey Cao Supervised by ( position+printed name+signature) . : Project Engineer Amy Wen Approved by ( position+printed name+signature) . : RF Manager Eric Wang Date of issue .................................... : Nov. 08, 2023 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................ : Shenzhen Boyi Electronics Co., Ltd. Address............................................ : 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Test specification ........................... : FCC CFR 47 PART 1, § 1.1310 Standard ........................................... : KDB 680106 D01 Wireless Power Transfer v04 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purpses as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology 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. Test item description ..................... : Portable Watch Charger Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Boyi Electronics Co., Ltd. Model/Type reference ...................... : BY-528V Listed Models .................................. : BY-528J, BY-528X Modulation Type ............................... : ASK Operation Frequency ........................ : From 110KHz~205KHz Rating ............................................... : DC 4.4V From battery and DC 5.0V From external circuit Wireless output: 2.5W(MAX) Result ............................................... : PASS Report No.: CTA23110100702 Page 2 of 12 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Portable Watch Charger Model /Type : BY-528V Listed Models : BY-528J, BY-528X Applicant : Shenzhen Boyi Electronics Co., Ltd. Address : 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Manufacturer : Shenzhen Boyi Electronics Co., Ltd. Address : 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA23110100702 Page 3 of 12 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 T E S T S T A N D A R D S ................................................... 4 2 S U M M A R Y .............................................................. 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Description of the test mode 5 2.4 Special Accessories 5 2.5 Modifications 5 3 T E S T E N V I R O N M E N T ................................................ 6 3.1 Address of the test laboratory 6 3.2 Test Facility 6 3.3 Statement of the measurement uncertainty 6 3.4 Equipments Used during the Test 6 4 T E S T L I M I T ............................................................ 7 4.1 Requirement 7 4.2 Test setup 7 4.3 Test Procedures 9 4.4 Equipment Approval Considerations of KDB 680106 D01v04 9 4.5 Test results 10 4.6 Conclusion 11 5 P H O T O G R A P H S O F T H E T E S T S E T U P......................... 12 Report No.: CTA23110100702 Page 4 of 12 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 1 T E S T S T A N D A R D S The tests were performed according to following standards: 680106 D01 Wireless Power Transfer v04: EQUIPMENT AUTHORIZATION OF WIRELESS POWER TRANSFER DEVICES. Report No.: CTA23110100702 Page 5 of 12 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 2 S U M M A R Y 2.1 General Remarks Date of receipt of test sample : Nov. 01, 2023 Testing commenced on : Nov. 01, 2023 Testing concluded on : Nov. 08, 2023 2.2 Product Description Product Name: Portable Watch Charger Model/Type reference: BY-528V Hardware version: V1.0 Software version: V1.0 Test samples ID: CTA231101007-1# (Engineer sample), CTA231101007-2# (Normal sample) Power Supply: DC 4.4V From battery and DC 5.0V From external circuit Wireless output: 2.5W(MAX) Adapter information (Auxiliary test supplied by test Lab: Model: EP-TA20CBC Input: AC 100-240V 50/60Hz Output: DC 5V 2A Operati…

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Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT Report Reference No. ..................... : FCC ID. ............................................ : CTA23110100701 2A5XO-BY-528V Compiled by ( position+printed name+signature) .. : File administrators Zoey Cao Supervised by ( position+printed name+signature) .. : Project Engineer Amy Wen Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue ..................................... : Nov. 08, 2023 Testing Laboratory Name ..............: Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................: Shenzhen Boyi Electronics Co., Ltd. Address ............................................ : 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Test specification ...........................: Standard ........................................... : FCC Rules and Regulations Part 15 Subpart C (Section 15.209), ANSI C63.10: 2013 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purpses as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology 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. Test item description .....................: Portable Watch Charger Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Boyi Electronics Co., Ltd. Model/Type reference....................... : BY-528V Listed Models .................................. : BY-528J, BY-528X Modulation Type ............................... : ASK Operation Frequency ........................ : From 110KHz~205KHz Rating ............................................... : DC 4.4V From battery and DC 5.0V From external circuit Wireless output: 2.5W(MAX) Result................................................ : PASS Report No.: CTA23110100701 Page 2 of 24 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Portable Watch Charger Model /Type : BY-528V Listed Models : BY-528J, BY-528X Applicant : Shenzhen Boyi Electronics Co., Ltd. Address : 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Manufacturer : Shenzhen Boyi Electronics Co., Ltd. Address : 5F, #Building 5, Longbi Industrial Zone, NO.27 Dafa Road, Bantian Street, Longgang District Shenzhen, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA23110100701 Page 3 of 24 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 T E S T S T A N D A R D S ................................................................. 4 2 S U MM A R Y ............................................................................ 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Description of the test mode 5 2.4 Special Accessories 5 2.5 Modifications 5 3 T E S T E N V I R O N M E N T .............................................................. 6 3.1 Address of the test laboratory 6 3.2 Test Facility 6 3.3 Environmental conditions 6 3.4 Summary of measurement results 7 3.5 Statement of the measurement uncertainty 7 3.6 Equipments Used during the Test 7 4 T E S T C O N D I T I O N S A N D R E S U L T S ............................................. 9 4.1 AC Power Conducted Emission 9 4.2 Radiated Emission 12 4.3 The 20dB bandwidth 16 4.4 Antenna Requirement 17 5 T E S T S E T U P P H O T O S O F T H E E U T ......................................... 18 6 PH O T O S O F T H E E U T ........................................................... 19 Report No.: CTA23110100701 Page 4 of 24 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 1 T E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules and Regulations Part 15 Subpart C (Section 15.207): Conducted limits. FCC Rules and Regulations Part 15 Subpart C (Section 15.209): Radiated emission limits; general requirements. ANSI C63.10: 2013: American National Standard for Testing Unlicensed Wireless Devices Report No.: CTA23110100701 Page 5 of 24 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 2 S U M M A R Y 2.1 General Remarks Date of receipt of test sample : Nov. 01, 2023 Testing commenced on : Nov. 01, 2023 Testing concluded on : Nov. 08, 2023 2.2 Product Description Product Name: Portable Watch Charger Model/Type…

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FCC ID: 2A5XO-BY-528V Test Setup Photos of the EUT