2ANO3PA-25WWireless Microphone

ShenZhen SHIDU Digital Technolgy Co.,Ltd Add: F6, Zhaofeng, HangKong Rd, Bao'an, Shenzhen, China Date: 2021/2/8 FCC ID: 2ANO3PA-25W Dear Sir/Madam, We, ShenZhen SHIDU Digital Technolgy 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: Wireless Microphone Model no.: PA-25W, SD-U2, SD-U6, SD-U8, SD-U9, SD-U10, SD-U15, SDU16, SD-U17, SD-U18, SD-U20, SD-U30, SD-S28, SD-S20, SD-S30, SD-S278, SD-298, SD-S40, SD-S611, SD-S613, SD- S615, SD-S619, SD-S92, SD-S93, SD-S94, SD-S96, SD-97, SD-S98, SD-S99, SD-M500,SD-M800, SD-M900, SD-M1000, SD-M2000 Sincerely, Name/Title： Jayson Yang/Manager Company: ShenZhen SHIDU Digital Technolgy Co.,Ltd Address: F6, Zhaofeng, HangKong Rd, Bao'an, Shenzhen, China Phone: 13691989167 Fax: 0755-29105099 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:<2021/2/8> 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 2ANO3PA-25W PA-25W 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： Jayson Yang/Manager Company: ShenZhen SHIDU Digital Technolgy Co.,Ltd Address: F6, Zhaofeng, HangKong Rd, Bao'an, Shenzhen, China Phone: 13691989167 Fax: 0755-29105099 E-Mail: [email protected]

ShenZhen SHIDU Digital Technolgy Co.,Ltd F6, Zhaofeng, HangKong Rd, Bao'an, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2021/2/8 To whom it may concern: We, ShenZhen SHIDU Digital Technolgy 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: 2ANO3PA-25W 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： Jayson Yang/Manager Company: ShenZhen SHIDU Digital Technolgy Co.,Ltd Address: F6, Zhaofeng, HangKong Rd, Bao'an, Shenzhen, China Phone: 13691989167 Fax: 0755-29105099 E-Mail: [email protected]

Page : 3 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT Page : 4 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT Page : 5 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Photo 5 Appearance of EUT Photo 6 Appearance of EUT Page : 6 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Photo 7 Appearance of Adapter

Page : 1 of 10 FCC ID: 2ANO3PA-25W TB-RF-074-1.0 Appendix IFCC ID Label Model:PA-25W FCC ID: 2ANO3PA-25W Page : 2 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Appendix II FCC ID Label Location

Page : 7 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Appendix IV EUT Internal Photographs Photo 8 Internal of EUT Photo 9 Internal of EUT Antenna Page : 8 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Photo 10 Appearance of PCB Photo 11 Appearance of PCB

Shenzhen Toby Technology Co., Ltd. Report No.: TB-MPE177918 Page: 1 of 2 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 RF Exposure Evaluation FCC ID: 2ANO3PA-25W 1. Client Information Applicant : ShenZhen SHIDU Digital Technolgy Co.,Ltd Address : F6, Zhaofeng, HangKong Rd, Bao'an, Shenzhen, China Manufacturer : ShenZhen SHIDU Digital Technolgy Co.,Ltd Address : F6, Zhaofeng, HangKong Rd, Bao'an, Shenzhen, China 2. General Description of EUT EUT Name : Wireless Microphone Model(s) No. : PA-25W, SD-U2, SD-U6, SD-U8, SD-U9, SD-U10, SD-U15, SDU16, SD-U17, SD-U18, SD-U20, SD-U30, SD-S28, SD-S20, SD-S30, SD-S278, SD-298, SD-S40, SD-S611, SD-S613, SD-S615, SD-S619, SD-S92, SD-S93, SD-S94, SD-S96, SD-97, SD-S98, SD-S99, SD-M500, SD-M800, SD-M900, SD-M1000, SD-M2000 Model Different : All these models are identical in the same PCB, layout and electrical circuit, the only difference is appearance. Sample ID : 20201217-20-1#&20201217-20-2# Product Description : Operation Frequency: 501MHz~540MHz Number of Channel: 40 channels Max Power Output: 7.49dBm Antenna Gain: 1.95dBi External Antenna Equipment System: Digital systems Power Rating : USB Input: DC 5V DC 3.7V 550mAh by Li-ion Battery Software Version : SD-PA25W-V1.4 Hardware Version : SHIDU-U8-V2.2 Remark : The antenna gain provided by the applicant, the verified for the RF conduction test and adapter provided by TOBY test lab. Note: More test information about the EUT please refer the RF Test Report. Report No.: TB-MPE177918 Page: 2 of 2 TB-RF-074-1.0 SAR Test Exclusion Calculations 1. FCC: According to KDB 447498 D01 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies v06. (1) Clause 4.3: General SAR test reduction and exclusion guidance Sub clause 4.31: Standalone SAR test exclusion considerations 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6GHz at test separation distance≤5 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤3.0 for 1-g SAR [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤7.5.0 for 10-g SAR 2. Calculation: Test separation: 5mm Frequency (MHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dBm) Max power of tune up tolerance (mw) Calculation Value Threshold Value 501 5.54 5±1 6 3.981 0.564 3.0 520 4.50 5±1 6 3.981 0.574 3.0 540 4.36 5±1 6 3.981 0.585 3.0 Conclusion: The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06. -----END OF REPORT-----

Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC177917 Page: 1 of 41 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 FCC Radio Test Report FCC ID: 2ANO3PA-25W Report No. : TB-FCC177917 Applicant : ShenZhen SHIDU Digital Technolgy Co.,Ltd Equipment Under Test (EUT) EUT Name : Wireless Microphone Model No. : PA-25W Series Model No. : SD-U2, SD-U6, SD-U8, SD-U9, SD-U10, SD-U15, SDU16, SD-U17, SD-U18, SD-U20, SD-U30, SD-S28, SD-S20, SD-S30, SD-S278, SD-298, SD-S40, SD-S611, SD-S613, SD-S615, SD-S619, SD-S92, SD-S93, SD-S94, SD-S96, SD-97, SD-S98, SD-S99, SD-M500,SD-M800, SD-M900, SD-M1000, SD-M2000 Brand Name : amp up Sample ID : 20201217-20-1#&20201217-20-2# Receipt Date : 2020-12-21 Test Date : 2020-12-22 to 2021-03-01 Issue Date : 2021-03-01 Standards : FCC Part 15, Subpart C (15.236) Test Method : ANSI C63.10: 2013 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above, The EUT technically complies with the FCC requirements Test/Witness Engineer : Rebeca Engineer Supervisor Ivan Su Engineer Manager : Ray Lai This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TB-FCC177917 Page: 2 of 41 TB-RF-074-1.1 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 5 1.1 Client Information ................................................................................................................. 5 1.2 General Description of EUT (Equipment Under Test) ................................................... 5 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 6 1.4 Description of Support Units .............................................................................................. 7 1.5 Description of Test Mode .................................................................................................... 7 1.6 Description of Test Software Setting ................................................................................ 7 1.7 Measurement Uncertainty .................................................................................................. 8 1.8 Test Facility ........................................................................................................................... 8 2. TEST SUMMARY ....................................................................................................................... 9 3. TEST SOFTWARE ..................................................................................................................... 9 4. TEST EQUIPMENT .................................................................................................................. 10 5. CONDUCTED EMISSION TEST ........................................................................................... 11 5.1 Test Standard and Limit .................................................................................................... 11 5.2 Test Setup ........................................................................................................................... 11 5.3 Test Procedure ................................................................................................................... 12 5.4 Deviation From Test Standard ......................................................................................... 12 5.5 EUT Operating Mode ........................................................................................................ 12 5.6 Test Data ............................................................................................................................. 12 6. RF OUTPUT POWER TEST .................................................................................................. 13 6.1 Test Standard and Limit .................................................................................................... 13 6.2 Test Setup ........................................................................................................................... 13 6.3 Test Procedure ................................................................................................................... 13 6.4 Deviation From Test Standard ......................................................................................... 14 6.5 EUT Operating Condition ................................................................................................. 14 6.6 Test Data ............................................................................................................................. 14 7. BANDWIDTH TEST ................................................................................................................. 15 7.1 Test Standard and Requirement ..................................................................................... 15 7.2 Test Setup ........................................................................................................................... 15 7.2 Test Procedure ................................................................................................................... 15 7.4 Deviation From Test Standard ......................................................................................... 15 7.5 EUT Operating Condition ................................................................................................. 15 7.6 Test Data .................................................................................…

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Page : 9 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Appendix V EUT Test Photographs Photo of Setup for Radiated Emission (Below 1 GHz) Photo of Setup for Radiated Emission (Above 1 GHz) Page : 10 of 10 FCC ID: 2ANO3PA-25W TB-RF-075-1.0 Photo of Setup for Conducted Emission -----END OF REPORT-----