2ADDH-139262Wifi stream Music Receiver

Monoprice, Inc. Date: 2020-03-26 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ADDH-139262 To Whom It May Concern: This letter is to statement that 139262 / Wifi stream Music Receiver. has been tested according to FCC Part 15B by Waltek Services (Shenzhen) Co., Ltd. (Test Report No.: WTD19S11081324E). And the SDOC file, meetting the requirements of the FCC regulations, would been provided when the device is sold by the responsible party in US. The service will not be sold until the SDOC is provided. If the sale does not have an SDOC, all responsibility is the responsibility of the applicant. Sincerely, Signature [David Fuge] [Sr. Director, Program Management] [Monoprice, Inc.]

Monoprice, Inc. Date: Mar. 26, 2020 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2ADDH-139262 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Schematics Block Diagram Operational Description Schematics.pdf Block Diagram.pdf Operational Description.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Monoprice, Inc. Signature David Fuge / Sr. Director, Program Management Typed name and Title

Monoprice, Inc. Date: 4/1/2020 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD To Whom It May Concern: We, Monoprice, Inc., state that our device, FCC ID: 2ADDH-139262, does not has rear cover. The label will be placed on the blank space at the back side. And the label will be visible to the end users when they purchase the product. There is no rear cover, so the FCC ID label has to be placed on the surface of product. Sincerely, Signature [David Fuge (Name)] [Sr. Director, Program Management (Title)] [Monoprice, Inc. (Company name)]

Monoprice, Inc. FCC ID: 2ADDH-139262 POWER OF ATTORNEY Date: Mar. 26, 2020 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Services (ShenZhen) Co., Ltd. (Philo Zhong) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Services (ShenZhen) Co., Ltd. (Philo Zhong) on our behalf shall have the same effect as acts of our own. This authorization expires on Mar. 25, 2021. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, Monoprice, Inc. are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, Monoprice, Inc. Signature David Fuge / Sr. Director, Program Management Typed name and Title

Appendix-139262-Photos Page 3 of 11 EUT – External View Model 139262 FCC ID: 2ADDH-139262 Appendix-139262-Photos Page 4 of 11 Appendix-139262-Photos Page 5 of 11

Product Name: Wifi stream Music Receiver Brand: Monoprice Model: 139262 FCC ID: 2ADDH-139262 139262 Label Sample and Location

Appendix-139262-Photos Page 6 of 11 EUT – Internal View Model 139262 FCC ID: 2ADDH-139262 WIFI ANT. Appendix-139262-Photos Page 7 of 11 Appendix-139262-Photos Page 8 of 11

Appendix-139262-Photos Page 9 of 11 Appendix-139262-Photos Page 10 of 11 Appendix-139262-Photos Page 11 of 11 ======End======

Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn Page 1 of 7 TEST REPORT Referen ce No. .................... : WTD19S11079960W002 V1 FCC ID ................................ : 2ADDH-139262 Applicant ............................ : Monoprice, Inc. Address .............................. : 1 Pointe Dr Suite# 400 Brea, California, United States Manufacturer .................... : Mansion Industry Co., Ltd. Address .............................. : No.402, Xiangshan Rd., The 3rd Industrial Park, Luotian Community, Songgang Street, Baoan District, Shenzhen, Guangdong, 518105 China Product ............................... : Wifi stream Music Receiver Model(s). ............................ : 139262 Brand Name ....................... : Monoprice Standards........................... : FCC Part 2.1091 Date of Receipt sample .... : 2019-11-19 Date of Test ....................... : 2019-11-20 to 2019-12-05 Date of Issue ...................... : 2020-03-27 Test Result ......................... : Pass Remarks: The re sults shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Services (Shenzhen) Co., Ltd. Address: 1/F., Fukangtai Building, West Baima Road, Songgang Street, Baoan District, Shenzhen, Guangdong, China Tel :+86-755-83551033 Fax:+86-755-83552400 Compiled by: Approved by: Ford Wang / Project Engineer Philo Zhong / Manager Reference No.: WTD19S11079960W002 V1 Page 2 of 7 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 2 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 CONTENTS ............................................................................................................................................................ 2 3 REVISION HISTORY ............................................................................................................................................ 3 4 GENERAL INFORMATION .................................................................................................................................. 4 4.1 GENERAL DESCRIPTION OF E.U.T. ................................................................................................................ 4 4.2 DETAILS OF E.U.T. ......................................................................................................................................... 4 5 TEST SUMMARY .................................................................................................................................................. 5 6 RF EXPOSURE ...................................................................................................................................................... 6 6.1 PROCEDURES AND REQUIREMENTS ............................................................................................................... 6 6.2 TEST RESULT .................................................................................................................................................. 7 Reference No.: WTD19S11079960W002 V1 Page 3 of 7 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 3 Revision History Test report No. Date of Receipt sample Date of Test Date of Issue Purpose Comment Approved WTD19S11079 960W002 2019-11-19 2019-11-20 to 2019-12- 05 2019-12-06 original - Replaced WTD19S11079 960W002 V1 2019-11-19 2019-11-20 to 2019-12- 05 2020-03-27 Version 1 Updated Valid Reference No.: WTD19S11079960W002 V1 Page 4 of 7 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 4 General Information 4.1 General Description of E.U.T. Product: Wifi stream Music Receiver Model(s): 139262 Model Description: N/A Wi-Fi Specification: 2.4G-802.11b/g/n HT20/n HT40 Hardware Version: MAP-KWS120180718 V1.1 Software Version: release 3.5.3612.17 Highest frequency (Exclude Radio): 1.25GHz Storage Location: Internal Storage Note: N/A 4.2 Details of E.U.T. Ratings: Powered by the POE Adapter: Sale without adatper Reference No.: WTD19S11079960W002 V1 Page 5 of 7 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 5 Test Summary Test Items Test Requirement Result Maximum Permissible Exposure (Exposure of Humans to RF Fields) 2.1091 PASS Reference No.: WTD19S11079960W002 V1 Page 6 of 7 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 6 RF Exposure Test Requirement: FCC Part 2.1091 Test Mode: The EUT work in test mode(Tx). 6.1 Procedures and Requirements Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. FCC Part 1.1307: (A) Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 (B) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz ; *Plane-wave equivalent power density Predication of MPE limit at a given distance S = power density (in appropriate units, e.g. mW/cm 2 ) P …

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Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn Page 1 of 73 TEST REPORT Reference No. .................... : WTD19S11079960W001 V1 FCC ID ................................ : 2ADDH-139262 Applicant ............................ : Monoprice, Inc. Address .............................. : 1 Pointe Dr Suite# 400 Brea, California, United States Manufacturer .................... : Mansion Industry Co., Ltd. Address .............................. : No.402, Xiangshan Rd., The 3rd Industrial Park, Luotian Community, Songgang Street, Baoan District, Shenzhen, Guangdong, 518105 China Product ............................... : Wifi stream Music Receiver Model(s). ............................ : 139262 Brand Name ....................... : Monoprice Standards........................... : FCC CFR47 Part 15.247:2018 Date of Receipt sample .... : 2019-11-19 Date of Test ....................... : 2019-11-20 to 2019-12-05 Date of Issue ...................... : 2020-03-27 Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Services (Shenzhen) Co., Ltd. Address: 1/F., Fukangtai Building, West Baima Road, Songgang Street, Baoan District, Shenzhen, Guangdong, China Tel :+86-755-83551033 Fax:+86-755-83552400 Compiled by: Approved by: Ford Wang / Project Engineer Philo Zhong / Manager Reference No.: WTD19S11079960W001 V1 Page 2 of 73 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 2 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 CONTENTS ............................................................................................................................................................ 2 3 REVISION HISTORY ............................................................................................................................................ 3 4 GENERAL INFORMATION .................................................................................................................................. 4 4.1 GENERAL DESCRIPTION OF E.U.T. ................................................................................................................ 4 4.2 DETAILS OF E.U.T. ......................................................................................................................................... 4 4.3 CHANNEL LIST ................................................................................................................................................. 5 4.4 TEST MODE ..................................................................................................................................................... 6 5 TEST SUMMARY .................................................................................................................................................. 7 6 EQUIPMENT USED DURING TEST .................................................................................................................. 8 6.1 EQUIPMENTS LIST ........................................................................................................................................... 8 6.2 DESCRIPTION OF SUPPORT UNITS ................................................................................................................. 9 6.3 MEASUREMENT UNCERTAINTY ....................................................................................................................... 9 6.4 TEST EQUIPMENT CALIBRATION ..................................................................................................................... 9 7 CONDUCTED EMISSION .................................................................................................................................. 10 7.1 E.U.T. OPERATION ....................................................................................................................................... 10 7.2 EUT SETUP ................................................................................................................................................... 10 7.3 MEASUREMENT DESCRIPTION ...................................................................................................................... 10 7.4 CONDUCTED EMISSION TEST RESULT ......................................................................................................... 11 8 RADIATED EMISSIONS..................................................................................................................................... 13 8.1 EUT OPERATION ........................................................................................................................................... 13 8.2 TEST SETUP .................................................................................................................................................. 14 8.3 SPECTRUM ANALYZER SETUP ...................................................................................................................... 15 8.4 TEST PROCEDURE ........................................................................................................................................ 16 8.5 CORRECTED AMPLITUDE & MARGIN CALCULATION ..................................................................................... 16 8.6 SUMMARY OF TEST RESULTS ....................................................................................................................... 17 9 CONDUCTED SPURIOUS EMISSIONS .......................................................................................................... 30 9.1 TEST PROCEDURE ....................................................…

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Appendix-139262-Photos Page 1 of 11 Photographs –Constructional Details WIFI Setup photo Model 139262 FCC ID: 2ADDH-139262 Photograph – Conducted Emission Test Setup Test Site 1# Photograph - Spurious Emissions Radiated Test Setup Below 30MHz Test Site 2# Appendix-139262-Photos Page 2 of 11 For 30MHz-1000MHz Test Site 2# For Above 1GHz Test Site 1#