2A542-AIR75Keyboard

SHENZHEN REOSTUDIO TECHNOLOGY CO.,LTD Agent Authorization Company: SHENZHEN REOSTUDIO TECHNOLOGY CO.,LTD Address: Room 308, Huasheng Building,Donghwan 2nd Road, Longhua District, Shenzhen, China Product Name: Keyboard Model Number(s): AIR75 Product Description: Keyboard We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022.05.26 Name: Jiankuai Li Title: PM Company: Shenzhen STS Test Services Co., Ltd.

SHENZHEN REOSTUDIO TECHNOLOGY CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022.05.26 Subject; Request for Confidentiality FCC ID: 2A542-AIR75 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 Operational Description 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: Date: 2022.05.26 Name: Jiankuai Li Title: PM Company: Shenzhen STS Test Services Co., Ltd.

Page 1 of 3 Report No.: STS2203196 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: AIR75 Photo 1 Photo 2 Page 2 of 3 Report No.: STS2203196 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2203196 Photo 5 Photo 6

FCC Label W:15mm L:30mm Note:The label is silk-screen on the sample Product Name: Keyboard Model Name: AIR75 FCC ID: 2A542-AIR75

Page 1 of 3 Report No.: STS2203196 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: AIR75 Photo 1 Photo 2 2.4G/BLE Antenna Page 2 of 3 Report No.: STS2203196 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2203196 Photo 5

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, All Test Data Presented in this report is only applicable to presented Test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] RADIO TEST REPORT Report No.: STS2203196W05 Issued for SHENZHEN REOSTUDIO TECHNOLOGY CO.,LTD Room 308, Huasheng Building,Donghwan 2nd Road, Longhua District, Shenzhen, China Product Name: Keyboard Brand Name: NUPHY Model Name: AIR75 Series Model: N/A FCC ID: 2A542-AIR75 Test Standard: FCC Part 15.249 S T L A B S Page 2 of 35 Report No.: STS2203196W05 TEST RESULT CERTIFICATION Applicant’s Name .................: SHENZHEN REOSTUDIO TECHNOLOGY CO.,LTD Address ..................................: Room 308, Huasheng Building,Donghwan 2nd Road, Longhua District, Shenzhen, China Manufacture's Name ............: SHENZHEN ARBITER TECHNOLOGY CO.,LTD Address ..................................: Floor 2, 3 and 4, Bldg. A, Meisheng Industrial Park, Chongqing Rd., Fuhai St., Baoan Dist.,Shenzhen, Guangdong, China Product Description Product Name ........................: Keyboard Brand Name .........................: NUPHY Model Name ...........................: AIR75 Series Model ..........................: N/A Test Standards ......................: FCC Part15.249 Test Procedure .......................: ANSI C63.10-2013 This device described above has been tested by STS, 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 STS, this document only be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ............................: Date of receipt of test item ......: 29 Mar. 2022 Date of performance of tests ..: 29 Mar. 2022 ~ 19 May 2022 Date of Issue ..........................: 19 May 2022 Test Result .............................: Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Bovey Yang) Page 3 of 35 Report No.: STS2203196W05 Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 6 1.2 MEASUREMENT UNCERTAINTY 6 2. GENERAL INFORMATION 7 2.1 GENERAL DESCRIPTION OF THE EUT 7 2.2 DESCRIPTION OF THE TEST MODES 8 2.3 TEST SOFTWARE AND POWER LEVEL 8 2.4 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 9 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 10 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 11 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 RADIATED EMISSION MEASUREMENT 16 4. BANDWIDTH TEST 31 4.1 TEST PROCEDURE 31 4.2 TEST SETUP 31 4.3 EUT OPERATION CONDITIONS 31 4.4 TEST RESULTS 32 5. ANTENNA REQUIREMENT 34 5.1 STANDARD REQUIREMENT 34 5.2 EUT ANTENNA 34 APPENDIX- PHOTOS OF TEST SETUP 35 Page 4 of 35 Report No.: STS2203196W05 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 19 May 2022 STS2203196W05 ALL Initial Issue Page 5 of 35 Report No.: STS2203196W05 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part 15.249 , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission Pass 15.203 Antenna Requirement Pass 15.249 Radiated Spurious Emission Pass 15.249 Radiated Band Edge Emission Pass 15.249 Field Strength of fundamental Pass 15.215(c) 20dB Bandwidth Pass NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Page 6 of 35 Report No.: STS2203196W05 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.87dB 2 Unwanted Emissions, conducted ±2.895dB 3 All emissions, radiated 9K-30MHz ±3.80dB 4 All emissions, radiated 30M-1GHz ±4.09dB 5 All emissions, radiated 1G-6GHz ±4.92dB 6 All emissions, radiated>6G ±5.49dB 7 Conducted Emission (9KHz-30MHz) ±2.73dB Page 7 of 35 Report No.: STS2203196W05 2. GENERAL INFORMATION Note: The antenna information refer the manufacturer provide report, applicable only to the tested sample identified in the report. 2.1 GENERAL DESCRIPTION OF THE EUT Product Name Keyboard Trade Name NUPHY Model Name AIR75 Series Model N/A Model Difference N/A Product Description The EUT is a Keyboard Operation Frequency: 2403~2480MHz Modulation Type: MSK Antenna Designation: Please refer to the Note 3. Antenna Gain(Peak): 2.34dBi Based on the application, features, or specification exhibited in User Manual, the EUT is considered as an ITE/Computing Device. More details of EUT technical specification, please refer to the User Manual. Channel List Please refer to the Note 2. Rating Input: DC 5V Battery Rated Voltage: 3.85V Charge Limit Voltage: 4.5-5.0V Capacity: 2500mAh Hardware version number N/A Software version number N/A Connecting I/O Port(s) Please refer to the Note 1. Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User Manual. 2. Channel List Channel Frequen cy (MHz) Channel Frequen cy (MHz) Channel Frequen cy (MHz) Channel Frequen cy (MHz) 1 2403 5 2407 9 2412 13 2419 2 2426 6 2422 10 2436 14 2439 3 2441 7 2445 11 2459 15 2453 4 2463 8 2466 12 2473 16…

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Page 1 of 3 FCC ID: 2A542-AIR75 DTS&DXX Setup photo Model name: AIR75 DTS&DXX conduction DTS radiation L Page 2 of 3 FCC ID: 2A542-AIR75 DTS radiation H DXX radiation L Page 3 of 3 FCC ID: 2A542-AIR75 DXX radiation H