2ABD3MS-WR23DInternet Radio

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Ocean Digital Technology Ltd. Agent Authorization Letter 2020-09-17 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen Huaxia Testing Technology Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Name: Karen Ho Position: Manager Company Name: Ocean Digital Technology Ltd. Address: Flat 12B, Yeung Yiu Chung (No.8) Ind. Bldg., 20 Wang Hoi Road, Kowloon Bay Tel / Fax 85224201464 / 85237532352 E-Mail: [email protected]

Declaration statement Letter 2020-09-17 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Declaration statement Letter To Whom It May Concern: We hereby declare that (FCC ID: 2ABD3MS-WR23D) fulfill the requirements of 47 CFR Part 15C Section 15.247(g) & 15.247(h). Compliance for section 15.247(g) According to Bluetooth Core Specification, the Bluetooth system transmits the packet with the pseudorandom hopping frequency with a continuous data and the short burst transmission from the Bluetooth system is also transmitted under the frequency hopping system with the pseudorandom hopping frequency system. Compliance for section 15.247(h) According to Bluetooth Core specification, the Bluetooth system incorporates with an adaptive system to detect other user within the spectrum band so that it individually and independently to avoid hopping on the occupied channels. According to the Bluetooth Core specification, the Bluetooth system is designed not have the ability to coordinated with other FHSS System in an effort to avoid the simultaneous occupancy of individual hopping frequencies by multiple transmitter. Please contact me if there is any information you may need. Sincerely, Name: Karen Ho Position: Manager Company Name: Ocean Digital Technology Ltd. Address: Flat 12B, Yeung Yiu Chung (No.8) Ind. Bldg., 20 Wang Hoi Road, Kowloon Bay Tel / Fax 85224201464 / 85237532352 E-Mail: [email protected]

Ocean Digital Technology Ltd. Long Term Confidentiality Request Letter 2020-09-17 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (FCC ID: 2ABD3MS-WR23D) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - e.g. Block diagram - e.g. SCH - e.g. Operational Description required to be submitted with this application be permanently withheld from public review. The above documents are company proprietary information that could never get into the possession of your competition. Please contact me if there is any information you may need. Sincerely, Name: Karen Ho Position: Manager Company Name: Ocean Digital Technology Ltd. Address: Flat 12B, Yeung Yiu Chung (No.8) Ind. Bldg., 20 Wang Hoi Road, Kowloon Bay Tel / Fax 85224201464 / 85237532352 E-Mail: [email protected]

Model difference letter 2020,09,17 Dear MET Reviewer, This is a new Application from Ocean Digital Technology Ltd. Model No.: WR-23D, MA-23CD, WR-23CD, MA-23D Only the model MA-23D was tested, since the electrical circuit design, layout, components used and internal wiring were identical for the above models, with difference being color of appearance and model name. Thank you for your cooperation! Yours sincerely, Signatory: Name: Karen Ho Position: Manager Company Name: Ocean Digital Technology Ltd. Address: Flat 12B, Yeung Yiu Chung (No.8) Ind. Bldg., 20 Wang Hoi Road, Kowloon Bay Tel / Fax 85224201464 / 85237532352 E-Mail: [email protected]

FCC ID: 2ABD3MS-WR23D Test Model No.:MA-23D FCC ID: 2ABD3MS-WR23D FCC ID: 2ABD3MS-WR23D FCC ID: 2ABD3MS-WR23D

FCC ID: 2ABD3MS-WR23D Test Model No.:MA-23D

FCC ID: 2ABD3MS-WR23D FCC ID: 2ABD3MS-WR23D FCC ID: 2ABD3MS-WR23D FCC ID: 2ABD3MS-WR23D

Shenzhen Huaxia Testing Technology Co., Ltd 1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District, Shenzhen, China Telephone: +86-755-26648640 Fax: +86-755-26648637 Website: www.cqa-cert.com Report Template Version: V04 Report Template Revision Date: 2018-07-06 Test Report The test report is effective only with both signature and specialized stamp, The result(s) shown in this report refer only to the sample(s) tested. Without written approval of CQA, this report can’t be reproduced except in full. Report No.: Applicant: Address of Applicant: CQASZ20200800941E-01 Ocean Digital Technology Ltd.. Flat 12B, Yeung Yiu Chung (No.8) Ind. Bldg., 20 Wang Hoi Road, Kowloon Bay Equipment Under Test (EUT): Product: Internet Radio Model No.: WR-23D, MA-23CD, WR-23CD, MA-23D Test Model No.: MA-23D Brand Name: N/A FCC ID: 2ABD3MS-WR23D Standards: 47 CFR Part 15, Subpart C Date of Receipt: 2020-08-28 Date of Test: 2020-08-28 to 2020-09-04 Date of Issue: 2020-09-04 Test Result: PASS* *In the configuration tested, the EUT complied with the standards specified above Tested By: ( Martin Lee ) Reviewed By: ( Sheek Luo ) Approved By: ( Jack Ai ) Shenzhen Huaxia Testing Technology Co., Ltd Report No.: CQASZ20200800941E-01 Page:2 of 101 1 Version Revision History Of Report Report No. Version Description Issue Date CQASZ20200800941E-01 Rev.01 Initial report 2020-09-04 Shenzhen Huaxia Testing Technology Co., Ltd Report No.: CQASZ20200800941E-01 Page:3 of 101 2 Test Summary Test Item Test Requirement Test method Result Antenna Requirement 47 CFR Part 15, Subpart C Section 15.203/15.247 (c) ANSI C63.10 (2013) PASS AC Power Line Conducted Emission 47 CFR Part 15, Subpart C Section 15.207 ANSI C63.10 (2013) PASS Conducted Peak Output Power 47 CFR Part 15, Subpart C Section 15.247 (b)(1) ANSI C63.10 (2013) PASS 20dB Occupied Bandwidth 47 CFR Part 15, Subpart C Section 15.247 (a)(1) ANSI C63.10 (2013) PASS Carrier Frequencies Separation 47 CFR Part 15, Subpart C Section 15.247 (a)(1) ANSI C63.10 (2013) PASS Hopping Channel Number 47 CFR Part 15, Subpart C Section 15.247 (a)(1) ANSI C63.10 (2013) PASS Dwell Time 47 CFR Part 15, Subpart C Section 15.247 (a)(1) ANSI C63.10 (2013) PASS Pseudorandom Frequency Hopping Sequence 47 CFR Part 15, Subpart C Section 15.247(b)(4)&TCB Exclusion List (7 July 2002) ANSI C63.10 (2013) PASS Band-edge for RF Conducted Emissions 47 CFR Part 15, Subpart C Section 15.247(d) ANSI C63.10 (2013) PASS RF Conducted Spurious Emissions 47 CFR Part 15, Subpart C Section 15.247(d) ANSI C63.10 (2013) PASS Radiated Spurious emissions 47 CFR Part 15, Subpart C Section 15.205/15.209 ANSI C63.10 (2013) PASS Restricted bands around fundamental frequency (Radiated Emission) 47 CFR Part 15, Subpart C Section 15.205/15.209 ANSI C63.10 (2013) PASS Note: Model No.: WR-23D, MA-23CD, WR-23CD, MA-23D Only the model MA-23D was tested, since the electrical circuit design, layout, components used and internal wiring were identical for the above models, with difference being color of appearance and model name. Shenzhen Huaxia Testing Technology Co., Ltd Report No.: CQASZ20200800941E-01 Page:4 of 101 3 Contents Page 1 VERSION .................................................................................................................................................................. 2 2 TEST SUMMARY .................................................................................................................................................... 3 3 CONTENTS .............................................................................................................................................................. 4 4 GENERAL INFORMATION ................................................................................................................................... 5 4.1 CLIENT INFORMATION .......................................................................................................................................... 5 4.2 GENERAL DESCRIPTION OF EUT .......................................................................................................................... 5 4.3 PRODUCT SPECIFICATION SUBJECTIVE TO THIS STANDARD .................................................................................. 5 4.4 ADDITIONAL INSTRUCTIONS................................................................................................................................. 7 4.5 TEST ENVIRONMENT ............................................................................................................................................ 8 4.6 DESCRIPTION OF SUPPORT UNITS ......................................................................................................................... 8 4.7 STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................. 9 4.8 TEST LOCATION ................................................................................................................................................. 10 4.9 TEST FACILITY ................................................................................................................................................... 10 4.10 ABNORMALITIES FROM STANDARD CONDITIONS ............................................................................................... 10 4.11 OTHER INFORMATION REQUESTED BY THE CUSTOMER ...................................................................................... 10 4.12 EQUIPMENT LIST ................................................................................................................................................ 11 5 TEST RESULTS AND MEASUREMENT DATA .............................................................................................. 12 5.1 ANTENNA REQUIREMENT ...............................................................................................................................…

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FCC ID: 2ABD3MS-WR23D 1 Photographs - EUT Test Setup 1.1 Radiated Emission 9kHz~30MHz: 30MHz~1GHz: FCC ID: 2ABD3MS-WR23D Above 1GHz: 1.2 Conducted Emission