2AH8S-20019Magnetic Wireless Power Bank

Best Case and Accessories, Inc. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 4/12/2021 Subject; Request for Confidentiality FCC ID: 2AH8S-20019 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 In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. 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: Charles Chu Title: Certification Consultant

1 - Page 1 of 4 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] APPENDIX 1- EUT PHOTO Photo 1 (For model 20019) Photo 2 1 - Page 2 of 4 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 3 Photo 4 1 - Page 3 of 4 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 5 Photo 6 1 - Page 4 of 4 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 7 ----END OF REPORT----

2021.06.22H6

Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Tel: (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] RF EXPOSURE Test Report Report No.: MTi210624014-01E2 Date of issue: July 08, 2021 Applicant: Best Case and Accessories, Inc. Product name: Magnetic Wireless Power Bank Model(s): 20019 FCC ID: 2AH8S-20019 Shenzhen Microtest Co., Ltd. http://www.mtitest.com - Page 2 of 12 - Report No.: MTi210624014-01E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Tel: (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Instructions 1. The report shall not be partially reproduced without the written consent of the laboratory; 2. The test results of this report are only responsible for the samples submitted; 3. This report is invalid without the seal and signature of the laboratory; 4. This report is invalid if transferred, altered or tampered with in any form without authorization; 5. Any objection to this report shall be submitted to the laboratory within 15 days from the date of receipt of the report. - Page 3 of 12 - Report No.: MTi210624014-01E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Tel: (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] TEST RESULT CERTIFICATION Applicant’s name ................. Best Case and Accessories, Inc. Address ............................... 140 58th Street, Suite 2-I Brooklyn New York United States 11220 Manufacturer's Name .......... ShenZhen Difung Energy Technology Co.,Ltd. Address ............................... 2/F, Building B, Bada Industrial Zone, Bada Road, Heping Community, Fuhai Street, Baoan District, Shenzhen Product description Product name ........................ Magnetic Wireless Power Bank Trademark .......................... JW Model Name ....................... 20019 Serial Model ........................ N/A Standards ............................ FCC CFR 47 PART 1 , 1.1310 Test procedure .................... KDB 680106 D01 RF Exposure Wireless Charging Apps v03r01 Date of Test Date (s) of performance of tests ............ : June 29, 2021 ~July 08, 2021 Test Result ............................................. : Pass This device described above has been tested by Shenzhen Microtest Co., Ltd. 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. Testing Engineer : (Danny Xu) Technical Manager : (Leo Su) Authorized Signatory : (Tom Xue) - Page 4 of 12 - Report No.: MTi210624014-01E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Tel: (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Table of Contents 1 GENERAL INFORMATION .......................................................................................................................................... 5 1.1 DESCRIPTION OF EUT ................................................................................................................................................... 5 1.2 ANCILLARY EQUIPMENT LIST ........................................................................................................................................... 5 1.3 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 TESTING SITE ............................................................................................................................................................ 7 3 LIST OF TEST EQUIPMENT ......................................................................................................................................... 8 4 TEST RESULTS ........................................................................................................................................................... 9 4.4 MAXIMUM PERMISSIBLE EXPOSURE.................................................................................................................................. 9 4.4.1 Limit .................................................................................................................................................................... 9 4.4.2 Test Procedures ................................................................................................................................................... 9 4.4.3 Test Setup.......................................................................................................................................................... 10 4.4.4 Test Result ......................................................................................................................................................... 10 4.4.5 MPE Setup photo .............................................................................................................................................. 12 - Page 5 of 12 - Report No.: MTi210624014-01E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Tel: (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] 1 General Information 1.1 Description of EUT Product name: Magnetic Wireless Power Bank Brand name: JW Model name: 20019 Series model: N/A Deference in serial model: N/A Operation frequency: 115–205 kHz Operational mode: Wireless charging Modulation type: ASK Antenna type: Coil Antenna Power source: DC 5V from adapter AC 120V/60Hz Input: DC 5V/2A Battery: DC 3.7V 5000mAh A…

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Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Test Report Report No.: MTi210624014-01E1 Date of issue: July 08, 2021 Applicant: Best Case and Accessories, Inc. Product name: Magnetic Wireless Power Bank Model(s): 20019 FCC ID: 2AH8S-20019 Shenzhen Microtest Co., Ltd. http://www.mtitest.com - Page 2 of 24 - Report No.: MTi210624014-01E1 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Instructions 1. The report shall not be partially reproduced without the written consent of the laboratory; 2. The test results of this report are only responsible for the samples submitted; 3. This report is invalid without the seal and signature of the laboratory; 4. This report is invalid if transferred, altered or tampered with in any form without authorization; 5. Any objection to this report shall be submitted to the laboratory within 15 days from the date of receipt of the report. - Page 3 of 24 - Report No.: MTi210624014-01E1 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Table of Contents 1 GENERAL INFORMATION ................................................................................................................................... 5 1.1 FEATURE OF EQUIPMENT UNDER TEST (EUT) ................................................................................................................... 5 1.2 TEST MODE .............................................................................................................................................................. 5 1.3 EUT TEST SETUP........................................................................................................................................................ 5 1.4 ANCILLARY EQUIPMENT .............................................................................................................................................. 5 2 SUMMARY OF TEST RESULT ............................................................................................................................... 6 2.1 OPERATION CHANNEL LIST ........................................................................................................................................... 6 2.2 TEST CHANNEL .......................................................................................................................................................... 6 3 TEST FACILITIES AND ACCREDITATIONS .............................................................................................................. 7 3.1 TEST LABORATORY ..................................................................................................................................................... 7 3.2 ENVIRONMENTAL CONDITIONS ..................................................................................................................................... 7 3.3 MEASUREMENT UNCERTAINTY ...................................................................................................................................... 7 4 LIST OF TEST EQUIPMENT .................................................................................................................................. 8 5 TEST RESULTS ..................................................................................................................................................... 9 5.1 ANTENNA REQUIREMENT ............................................................................................................................................ 9 5.1.1 Standard requirement ................................................................................................................................. 9 5.1.2 EUT Antenna ............................................................................................................................................... 9 5.2 CONDUCTED EMISSION ............................................................................................................................................. 10 5.2.1 Limits ......................................................................................................................................................... 10 5.2.2 Test Procedures ......................................................................................................................................... 10 5.2.3 Test Setup .................................................................................................................................................. 10 5.2.4 Test Result ................................................................................................................................................. 10 5.3 RADIATED EMISSION ................................................................................................................................................. 15 5.3.1 Limits ......................................................................................................................................................... 15 5.3.2 Test Procedures ......................................................................................................................................... 16 5.3.3 Test Setup .................................................................................................................................................. 17 5.3.4 Test Result ..............................................................................................................................…

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Model: 20019 Radiated emission Conducted emission