2AAUI-GDIEXSNDXTRSoundExtreme

Letter of Authorization Company: Grace Digital Inc. Address: 10531 4S Commons Drive#166 Suite#430, San Diego, CA 92127, USA Product Name: SoundExtreme Model Number: GDI-EXSNDXTR01 FCC Identifier: 2AAUI-GDIEXSNDXTR We authorize MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, is allowed to forward all information related to the approval project to the Federal Communication Commission 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. Name: Jamie Florczak Date: Sep. 28.2020 Title: Manager Signature of applicant:

Grace Digital Inc. Date: Sep 28, 2020 FCC ID: 2AAUI-GDIEXSNDXTR Model Number: GDI-EXSNDXTR01 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Grace Digital Inc. declare that this EUT (FCC ID: 2AAUI-GDIEXSNDXTR) will conduct FCC compliance testing, the SDOC part recognized test lab(Shenzhen NTEK Testing Technology Co., Ltd.( ShenZhen Lab.). 1/F, Building E, Fenda Science Park, Sanwei Community,Xixiang Street Bao’an District, Shenzhen 518126 P.R. China) Please contact me if you have any question. Sincerely, (Signed) Name / Title: Jamie Florczak/ Manager Company: Grace Digital Inc. Address: 10531 4S Commons Drive#166 Suite#430, San Diego, CA 92127,USA

Grace Digital Inc. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020/09/28 Subject; Request for Confidentiality FCC ID: 2AAUI-GDIEXSNDXTR 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 SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES 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 pursuantto 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: Jamie Florczak Title: Manager Email: [email protected]

ATTACHMENT PHOTOGRAPHS OF EUT Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 Photo 7

Report No.: S20051203306002 Version.1.3 Page 1 of 46 RADIO TEST REPORT FCC ID: 2AAUI-GDIEXSNDXTR Product: SoundExtreme Trade Mark: ECOXGEAR Model No.: GDI-EXSNDXTR01 Family Model: N/A Report No.: S20051203306002 Issue Date: 09 Sep. 2020 Prepared for Grace Digital Inc. 10531 4S Commons Drive#166 Suite#430, San Diego, CA 92127, USA Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel.: +86-755-6115 6588 Fax.: +86-755-6115 6599 Website:http://www.ntek.org.cn Report No.: S20051203306002 Version.1.3 Page 2 of 46 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9 6.2 SUPPORT EQUIPMENT ............................................................................................................................... 10 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 11 7 TEST REQUIREMENTS .................................................................................................................................... 13 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 15 7.3 6DB BANDWIDTH ....................................................................................................................................... 24 7.4 DUTY CYCLE ............................................................................................................................................... 25 7.5 PEAK OUTPUT POWER .............................................................................................................................. 27 7.6 POWER SPECTRAL DENSITY ................................................................................................................... 28 7.7 CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 30 7.8 SPURIOUS RF CONDUCTED EMISSIONS ................................................................................................ 31 7.9 ANTENNA APPLICATION .......................................................................................................................... 32 8 TEST RESULTS ................................................................................................................................................... 33 8.1 MAXIMUM CONDUCTED OUTPUT POWER ........................................................................................... 33 8.2 OCCUPIED CHANNEL BANDWIDTH ....................................................................................................... 35 8.3 MAXIMUM POWER SPECTRAL DENSITY LEVEL ................................................................................. 39 8.4 BAND EDGE ................................................................................................................................................. 41 8.5 CONDUCTED RF SPURIOUS EMISSION .................................................................................................. 43 Report No.: S20051203306002 Version.1.3 Page 3 of 46 1 TEST RESULT CERTIFICATION Applicant’s name ......................... : Grace Digital Inc. Address ....................................... : 10531 4S Commons Drive#166 Suite#430, San Diego, CA 92127, USA Manufacturer's Name .................. : Xingtel Xiamen Group Co., Ltd. Address ....................................... : Xingtel Building,Chuangxin Road, Torch Hi-Tech Industrial District,Xiamen 361006, PR China Product description Product name .............................. : SoundExtreme Model and/or type reference ..... : GDI-EXSNDXTR01 Family Model ............................... : N/A Measurement Procedure Used: APPLICABLE STANDARDS APPLICABLE STANDARD/ TEST PROCEDURE TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 Complied This device described above has been tested by Shenzhen NTEK Testing Technology 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. This report shall not be reproduced except in full, without the written approval of Shenzhen NTEK Testing Technology Co., Ltd., this document m…

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Radiated Measurement Photos