2AUFR-RT239Wireless Audio Receiver

The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Shenzhen 1Mii Technologies Limited Agent Authorization Company: Shenzhen 1Mii Technologies Limited Address: Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, China Product Name: Wireless Audio Receiver Trade Mark: 1Mii Model Number: ML300, ML301, RT238, RT239, ML300S, ML300C, ML300+, ML300Pro, ML300Pro+, ML301S, ML301C, ML301+, ML301Pro, ML301Pro+ FCC ID: 2AUFR-RT239 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: 2020-11-25 Name: Jinling Zeng Title: Product Engineer Company: Shenzhen 1Mii Technologies Limited

Shenzhen 1Mii Technologies Limited Add: Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, China Tel: (86)15602316406 Fax: (86)755-27903287 Date: 2020-11-25 Dear Sir/Madam, We, Shenzhen 1Mii Technologies Limited Hereby declares the following statement , PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these models: Product name: Wireless Audio Receiver Models No.: ML300, ML301, RT238, RT239, ML300S, ML300C, ML300+, ML300Pro, ML300Pro+, ML301S, ML301C, ML301+, ML301Pro, ML301Pro+ Sincerely, Client’s name / title : Jinling Zeng / Product Engineer Contact information / address: Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen- Hong Kong Cooperation Zone, Shenzhen, China Tel: (86)15602316406 Fax: (86)755-27903287 E-Mail: [email protected]

Shenzhen 1Mii Technologies Limited Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-11-25 Subject; Request for Confidentiality FCC ID: 2AUFR-RT239 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: Name: Jinling Zeng Title: Product Engineer

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 4 External Photos of the EUT Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 4 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 4 Fig.5 Fig.6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 4 Fig.7

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 1 Label and Location Size: L2.0cm*W1.5cm Label Location Wireless Audio Receiver Model No.: ML300 FCC ID: 2AUFR-RT239

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 5 Internal Photos of the EUT Fig.1 Fig.2 BT Antenna SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 5 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 5 Fig.5 Fig.6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 5 Fig.7 Fig.8 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 5 Fig.9

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 ________________________________________________________________________ ___ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 3 FCC RF Exposure Evaluation 1. Product Information FCC ID : 2AUFR-RT239 Product name : Wireless Audio Receiver Test Model : ML300 Power supply : DC 3.7V by Rechargeable Li-ion Battery, 280mAh Input: DC 5V Bluetooth : 2402MHz ~ 2480MHz Channel Number : 79 channels for Bluetooth V5.0(DSS) Channel Spacing : 1MHz for Bluetooth V5.0 (DSS) Modulation Type : GFSK, π/4-DQPSK, 8-DPSK for Bluetooth V5.0(DSS) Bluetooth Version : V5.0 Antenna Type : PCB Antenna Antenna Gain : 0dBi(Max.) Hardware Version : RT239 V2.0 Software Version : UAT023-A0 (1Miii RT239）_V1.7 Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable Device 2. Evaluation method and Limit According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.“ [(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)+ · *√f (GHz)+ ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f (GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 ________________________________________________________________________ ___ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 3 transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to f) in section 4.1 is applied to determine SAR test exclusion. When one of the following test exclusion conditions is satisfied for all combinations of simultaneous transmission configurations, further equipment approval is not required to incorporate transmitter modules in host devices that operate in the mixed mobile and portable host platform exposure conditions. The grantee is responsible for documenting this according to Class I permissive change requirements. Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to determine simultaneous transmission test exclusion. a) The [∑ of (the highest measured or estimated SAR for each standalone antenna configuration, adjusted for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0. b)The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating in portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] is ≤ 1.0. 3. Refer Evaluation Method ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: portable devices 4. Conducted Power Results <BT> Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 0.191 39 2441 0.412 78 2480 0.471 π/4DQPSK 0 2402 2.272 39 2441 2.457 78 2480 2.536 8DPSK 0 2402 2.782 39 2441 2.852 78 2480 2.912 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 ________________________________________________________________________ ___ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 3 5. Manufacturing Tolerance <BT> GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 0 0 0 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 2.0 2.…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 1 of 47 Appendix A RF Test Data for BT V5.0(BDR/EDR) (Conducted Measurement) Product Name: Wireless Audio Receiver Trade Mark: 1Mii Test Model: ML300 Environmental Conditions Temperature: 24.6  C Relative Humidity: 54.1% ATM Pressure: 100.0 kPa Test Engineer: Jay Li Supervised by: Li Huan A.1 Maximum Conducted Peak Output Power Mode Channel. Maximum Peak Output Power [dBm] Limit [dBm] Verdict GFSK LCH 0.191 21 PASS MCH 0.412 21 PASS HCH 0.471 21 PASS π/4DQPSK LCH 2.272 21 PASS MCH 2.457 21 PASS HCH 2.536 21 PASS 8DPSK LCH 2.782 21 PASS MCH 2.852 21 PASS HCH 2.912 21 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 2 of 47 Test Graphs GFSK/LCH GFSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 3 of 47 GFSK/HCH π/4DQPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 4 of 47 π/4DQPSK/MCH π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 5 of 47 8DPSK/LCH 8DPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 6 of 47 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 7 of 47 A.2 20dB Bandwidth Mode Channel. 20dB Bandwidth [MHz] Limit [MHz] Verdict GFSK LCH 1.030 Not Specified PASS MCH 1.032 Not Specified PASS HCH 1.029 Not Specified PASS π/4DQPSK LCH 1.367 Not Specified PASS MCH 1.364 Not Specified PASS HCH 1.363 Not Specified PASS 8DPSK LCH 1.348 Not Specified PASS MCH 1.346 Not Specified PASS HCH 1.349 Not Specified PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 8 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 9 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 10 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 11 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 12 of 47 A.3 Carrier Frequency Separation Mode Channel. Carrier Frequency Separation [MHz] Limit [MHz] Verdict GFSK LCH 1.054 0.688 PASS MCH 1.006 0.688 PASS HCH 1.034 0.688 PASS π/4DQPSK LCH 1.010 0.911 PASS MCH 1.028 0.911 PASS HCH 1.024 0.911 PASS 8DPSK LCH 0.998 0.899 PASS MCH 1.142 0.899 PASS HCH 0.956 0.899 PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 13 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 14 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 15 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 16 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 17 of 47 A.4 Hopping Channel Number Mode Channel. Number of Hopping Channel [N] Limit [N] Verdict GFSK Hop 79 >=15 PASS π/4DQPSK Hop 79 >=15 PASS 8DPSK Hop 79 >=15 PASS Test Graphs GFSK/Hop π/4DQPSK/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 18 of 47 8DPSK/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 19 of 47 A.5 Dwell Time Mode Packet Channel Burst Width [ms/hop/ch] Total Hops[hop*ch] Dwell Time[s] Limit [s] Verdict GFSK DH5 LCH 2.94 106.7 0.314 0.4 PASS DH5 MCH 2.94 106.7 0.314 0.4 PASS DH5 HCH 2.92 106.7 0.312 0.4 PASS π/4DQPSK 2DH5 LCH 2.94 106.7 0.314 0.4 PASS 2DH5 MCH 2.94 106.7 0.313 0.4 PASS 2DH5 HCH 2.92 106.7 0.312 0.4 PASS 8DPSK 3DH5 LCH 2.94 106.7 0.312 0.4 PASS 3DH5 MCH 2.94 106.7 0.312 0.4 PASS 3DH5 HCH 2.92 106.7 0.312 0.4 PASS Test Graphs GFSK_DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 20 of 47 GFSK_DH5/MCH GFSK_DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 21 of 47 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 22 of 47 π/4DQPSK _2DH5/HCH 8DPSK _3DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 23 of 47 8DPSK _3DH5/MCH 8DPSK _3DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 24 of 47 A.6 RF Conducted Spurious Emissions Mode Channel Pref [dBm] Max. Level [dBm] Limit [dBm] Verdict GFSK LCH -0.689 -36.774 -20.689 PASS MCH -0.519 -36.390 -20.519 PASS HCH -0.454 -35.966 -20.454 PASS π/4DQPSK LCH -1.771 -37.249 -21.771 PASS MCH -1.621 -37.146 -21.621 PASS HCH -1.591 -37.438 -21.591 PASS 8DPSK LCH -1.865 -36.825 -21.865 PASS MCH -1.571 -34.099 -21.571 PASS HCH -1.59 -36.577 -21.590 PASS GFSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 25 of 47 Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 26 of 47 GFSK_MCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 27 of 47 GFSK_HCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA Page 28 of 47 π/4DQPSK_LCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2A…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 37 FCC TEST REPORT FOR Shenzhen 1Mii Technologies Limited Wireless Audio Receiver Test Model: ML300 Additional Models No.: Please Refer to Page 6 Prepared for : Shenzhen 1Mii Technologies Limited Address : Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, China. Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Shajing Street, Baoan District, Shenzhen, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : October 19, 2020 Number of tested samples : 2 Sample No. ： 201013082A-1, 201013082A-2 Serial number : Prototype Date of Test : October 19, 2020 ~ October 26, 2020 Date of Report : October 31, 2020 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 37 FCC TEST REPORT FCC CFR 47 PART 15 C (15.247) Report Reference No. ....................... : LCS201013082AEA Date of Issue ......................................... : October 31, 2020 Testing Laboratory Name ................. : Shenzhen LCS Compliance Testing Laboratory Ltd. Address ................................................. : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Shajing Street, Baoan District, Shenzhen, China Testing Location/ Procedure ................ : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name ............................... : Shenzhen 1Mii Technologies Limited Address ................................................. : Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, China. Test Specification Standard ............................................... : FCC CFR 47 PART 15 C (15.247) Test Report Form No............................ : LCSEMC-1.0 TRF Originator ..................................... : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF .......................................... : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test Item Description. ........................ : Wireless Audio Receiver Trade Mark ........................................... : 1Mii Test Model ........................................... : ML300 Ratings ................................................. : DC 3.7V by Rechargeable Li-ion Battery, 280mAh Input: DC 5V Result ................................................. : Positive Tested by: Compiled by: Approved by: Jin Wang/ Administrator Linda He/ Technique principal Gavin Liang / Manager SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 37 FCC -- TEST REPORT Test Result Positive The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCS201013082AEA October 31, 2020 Date of issue Test Model.............................. : ML300 EUT......................................... : Wireless Audio Receiver Applicant............................... : Shenzhen 1Mii Technologies Limited Address................................... : Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, China. Telephone............................... : / Fax.......................................... : / Manufacturer......................... : Shenzhen 1Mii Technologies Limited Address................................... : Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, China. Telephone............................... : / Fax.......................................... : / Factory................................... : Shenzhen 1Mii Technologies Limited Address................................... : Qianhai Complex A201, Qianwan Road 1, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, China. Telephone............................... : / Fax.......................................... : / SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 37 Revision History Revision Issue Date Revisions Revised By 000 October 31, 2020 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 Report No.: LCS201013082AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 37 TABLE OF CONTENTS Description Page 1.GENERAL INFORMATION ...................................................................................................... 6 1.1 Description of Device (EUT) ............................................................................................................... 6 1.2 Support equipment List .............…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 _______________________________________________________________________________________________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 2 Test Setup Photos of the EUT Radiated Emissions Fig. 1 Fig. 2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT239 _______________________________________________________________________________________________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 2 Conducted Emissions Fig. 3