2AUFR-RT230Bluetooth transmitter and receiver 2-in-1

Radiation Exposure Statement 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: Bluetooth transmitter and receiver 2-in-1 Trade Mark: 1Mii Model Number: B310Pro, B310, RT230, B310S, B310C, B310+, B3100Pro+ FCC ID: 2AUFR-RT230 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: 2021-01-29 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: 2021-01-29 Dear Sir/Madam, We, Shenzhen 1Mii Technologies Limited H ereby declares the following statement , PCB board, circuit, s tructure and internal of these model(s) are the same, Only model number is different for these models: Product name: Bluetooth transmitter and receiver 2-in-1 Models No.: B310Pro, B310, RT230, B310S, B310C, B310+, B3100Pro+ Sincerely, Client’s name / title : Jinling Zeng / Product Engineer Contact information / address: Q ianhai 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: 2021-01-29 Subject; Request for Confidentiality FCC ID: 2AUFR-RT230 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-RT230 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 1 1. EXTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 2 of 2 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 3 of 3 Fig.5 Fig.6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 ________________________________________________________________________________ _________ 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 Fig.8 BT Antenna SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 ________________________________________________________________________________ _________ 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 Fig.10

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 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: L6.0cm*W4.0cm Label Location Bluetooth transmitter and receiver 2-in-1 Model No.: B310Pro FCC ID: 2AUFR-RT230

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 1. INTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Fig.5 Fig.6

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR‐RT230 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‐RT230 Product name Bluetooth transmitter and receiver 2‐in‐1 Test Model B310Pro Additional Model B310, RT230, B310S, B310C, B310+, B3100Pro+ Model Declaration PCB board, structure and internal of these model(s) are the same,Sonoadditionalmodelsweretested Power supply Input: DC 5V, 150mA Max DC 3.7V By Li‐ion Battery(1200mAh) Modulation Type GFSK, π/4‐DQPSK,8‐DPSK for Bluetooth V5.0 (DSS) Antenna Type External Antenna Antenna Gain 2dBi(maximum) Hardware version RT230 V3.0 Software version TL_RT230(B310Pro)(8670).1.0.22 Bluetooth Operation frequency 2402MHz‐2480MHz Bluetooth Version V5.0 Exposure category General population/uncontrolled environment EUT Type Production Unit Device Type Portable Device 2. Evaluation Method According to KDB447498 D01 General RF Exposure Guidance v06Section 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. 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 separaƟon 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 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. SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR‐RT230 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 3 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 esƟmated SAR for each standalone antenna configuration, adjusted for maximum tune‐up tolerance) / 1.6 W/kg] + [∑ of MPE raƟos] 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 raƟos] 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 Classics] Mode Channel Frequency (MHz)Average Conducted Output Power (dBm) GFSK 0 2402 5.974 39 2441 6.882 78 2480 6.569 π/4DQPSK 0 2402 4.882 39 2441 6.135 78 2480 5.871 8‐DPSK 0 2402 5.111 39 2441 6.298 78 2480 6.071 5. Manufacturing Tolerance [BT Classics] GFSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) 5.0 6.0 6.0 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) 4.0 6.0 5.0 Tolerance ±(dB) 1.0 1.0 1.0 8‐DPSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) 5.0 6.0 6.0 Tolerance ±(dB) 1.0 1.0 1.0 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR‐RT230 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Pag…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Report No.: LCS201214174AEA Page 1 of 47 Appendix A RF Test Data for BT V5.0(BDR/EDR) (Conducted Measurement) Product Name: Bluetooth transmitter and receiver 2-in-1 Trade Mark: 1Mii Test Model: B310Pro 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 Maxmum Conducted Peak Output Power Mode Channel. Maximum Peak Output Power [dBm]Limit [dBm] Verdict GFSK LCH 5.974 21 PASS MCH 6.882 21 PASS HCH 6.569 21 PASS π/4DQPSK LCH 4.882 21 PASS MCH 6.135 21 PASS HCH 5.871 21 PASS 8DPSK LCH 5.111 21 PASS MCH 6.298 21 PASS HCH 6.071 21 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 2 of 47 Test Graphs GFSK/LCH GFSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 3 of 47 GFSK/HCH π/4DQPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 4 of 47 π/4DQPSK/MCH π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 5 of 47 8DPSK/LCH 8DPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 6 of 47 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 7 of 47 A.2 20dB Bandwidth Mode Channel. 20dB Bandwidth [MHz] Limit [MHz] Verdict GFSK LCH 0.9422 Not Specified PASS MCH 0.9378 Not Specified PASS HCH 0.9368 Not Specified PASS π/4DQPSK LCH 1.230 Not Specified PASS MCH 1.262 Not Specified PASS HCH 1.235 Not Specified PASS 8DPSK LCH 1.264 Not Specified PASS MCH 1.264 Not Specified PASS HCH 1.265 Not Specified PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 8 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 9 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 10 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 11 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 12 of 47 A.3 Carrier Frequency Separation Mode Channel. Carrier Frequency Separation [MHz] Limit [MHz] Verdict GFSK LCH 0.826 0.628 PASS MCH 1.136 0.628 PASS HCH 1.058 0.628 PASS π/4DQPSK LCH 1.018 0.841 PASS MCH 1.052 0.841 PASS HCH 1.122 0.841 PASS 8DPSK LCH 0.990 0.843 PASS MCH 0.986 0.843 PASS HCH 1.152 0.843 PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 13 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 14 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 15 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 16 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA 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-RT230 Report No.: LCS201214174AEA Page 18 of 47 8DPSK/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA 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 2.9 106.7 0.309 0.4 PASS DH5 MCH 2.9 106.7 0.309 0.4 PASS DH5 HCH 2.9 106.7 0.309 0.4 PASS π/4DQPSK 2DH5 LCH 2.9 106.7 0.31 0.4 PASS 2DH5 MCH 2.9 106.7 0.31 0.4 PASS 2DH5 HCH 2.9 106.7 0.31 0.4 PASS 8DPSK 3DH5 LCH 2.9 106.7 0.31 0.4 PASS 3DH5 MCH 2.9 106.7 0.31 0.4 PASS 3DH5 HCH 2.9 106.7 0.31 0.4 PASS Test Graphs GFSK_DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 20 of 47 GFSK_DH5/MCH GFSK_DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 21 of 47 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 22 of 47 π/4DQPSK _2DH5/HCH 8DPSK _3DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 23 of 47 8DPSK _3DH5/MCH 8DPSK _3DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 24 of 47 A.6 RF Conducted Spurious Emissions Mode Channel Pref [dBm] Max. Level [dBm] Limit [dBm] Verdict GFSK LCH 5.84 -37.944 -14.160 PASS MCH 6.542 -38.077 -13.458 PASS HCH 6.415 -37.387 -13.585 PASS π/4DQPSK LCH 3.378 -38.018 -16.622 PASS MCH 4.947 -36.381 -15.053 PASS HCH 4.861 -36.983 -15.139 PASS 8DPSK LCH 2.807 -36.912 -17.193 PASS MCH 5.153 -37.918 -14.847 PASS HCH 5.105 -36.591 -14.895 PASS GFSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 25 of 47 Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 26 of 47 GFSK_MCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 27 of 47 GFSK_HCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS201214174AEA Page 28 of 47 π/4DQPSK_LCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT230 Report No.: LCS20121417…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Report No.: LCS201214174AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 36 FCC TEST REPORT For Shenzhen 1Mii Technologies Limited Bluetooth transmitter and receiver 2-in-1 Test Model: B310Pro Additional Model 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 Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : December 16, 2020 Number of tested samples : 2 Sample No. : 201214174A-1, 201214174A-2 Serial number : Prototype Date of Test : December 16, 2020 ~ January 09, 2021 Date of Report : January 13, 2021 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Report No.: LCS201214174AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 36 FCC TEST REPORT FCC CFR 47 PART 15 C (15.247) Report Reference No. ................. : LCS201214174AEA Date of Issue .................................. : January 13, 2021 Testing Laboratory Name ............ : Shenzhen LCS Compliance Testing Laboratory Ltd. Address .......................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, 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. EUT Description. .......................... : Bluetooth transmitter and receiver 2-in-1 Trade Mark ..................................... : 1Mii Test Model...................................... : B310Pro Ratings ........................................... : Input: DC 5V, 150mA Max DC 3.7V B y Li-ion Battery(1200mAh) Result ........................................... : Positive Compiled by: Supervised by: Approved by: Ray Yang/ Administrators Jin Wang/ Technique principal Gavin Liang/ Manager SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Report No.: LCS201214174AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 36 FCC -- TEST REPORT Test Model............................... : B310Pro EUT......................................... : Bluetooth transmitter and receiver 2-in-1 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.......................................... : 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. : LCS201214174AEA January 13, 2021 Date of issue SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Report No.: LCS201214174AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 36 Revision History Revision Issue Date Revisions Revised By 000 January 13, 2021 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 Report No.: LCS201214174AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 36 TABLE OF CONTENTS Description .................................................................................................................................. Page 1. GENERAL INFORMATION ................................................................................................................................... 6 1.1. DESCRIPTION OF DEVICE…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 _______________________________________________________________________________________________ 1. TEST SETUP PHOTOGRAPHS 1.1. Photo of Radiated Emissions Measurement Fig. 1 Fig. 2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT230 _______________________________________________________________________________________________ 1.2. Photo of Conducted Emissions Measurement Fig. 3