2AUFR-RT908Wireless Audio Amplifier Receiver

说明书黑白折页 105g铜板纸 折页品尺寸： 98X110mm RT908 说明书 06908207001 98*110mm VER:3.0 Winson 2020/09/09 RT907 Bluetooth Digital Amplifier Receiver User Manual Hello Model: B0308 3. Product overview & control function2. Package contents A. Bluetooth Digital Amplifier Receiver B. AC Power cable C. Power adapter D.User manual B08+ is a Bluetooth receiver with power amplifier function,and also supports Aux anolog optical wired audio input. B08+ use the high-hend, Qualcomm chip Support aptX-HD function it can drive 100W * 2 passive speakers and 1 active subwoofer you can enjoy high-quality music while experiencing the convenience of wireless • Supports profiles: A2DP,AVRCP • Audio codec: aptX aptX-HD, SBC • Operational range: Indoors: up to 50-70ft (without obstacles) Outdoors: up to 197ft (without obstacles) • Input voltage/ current: DC24V 4A • Operating temperature: -10°C ~ 45°C • Storage temperature: -20°C ~ 60°C • Support sampling rate in optical mode: ≤ 48KHz • Product size: 136 × 101 × 45 mm • Product weight: B08+: 230g 1. Product specifications Always dispose of the used appliance at a recycling centre. Do not dispose the used appliance together with household waste. Disposal Warnings Warranty service is limited to normal use. Any man-made damages such as from connecting to an unsuitable power source, using an unsuitable device, or not following the instructions, as well as damages that did not occur during shipping, repairs and adjustments not approved by the company, damages from misuse, inattention, or improper installation may cause the warranty to be ineffective immediately. This warranty does not include shipping fees. 6. Restore factory default settings You may need to reset B08+ if it is not working as expected. When B08+ is reset to factory default settings, all the paired device information will be cleared. ●Hold the button together 10s until the LED flashes Blue and Red. Frequently Asked Questions: Bluetooth Audio Amplifier Receiver User Manual Hello Model No: B0301 4. Installation diagram 5. Pair and connect two devices simultaneously 1)Pair with the first device by following the previous instructions in the “Installation diagram” section. 2) Pair with the second device. •Long press button to enter the pairing mode again. the LED will flash Blue and Red. •Activate bluetooth on the second device and click B08+ to pair. Note: You can only play music on one device at a time. you need to pause the music on your device first to play music on the other one. B08+ B08+ Press the button to enter the pairing mode again, the blue and red LED will flash.Activate bluetooth on your phone and click B08+ to pair. B08+ B08+ 2*Passive Speaker Subwoofer SPK Output Power Port RCA Input 3.5mm Input Subwoofer Output Optical Input 1) Connect your speaker to B08+ Audio Out port with the audio cable. 2) Connect B08+ to a power source. 1.Plug the power cord into the “DC in” port . 2.Plug the Power supply into an AC(mains) power outlet. 3) Turn the volume knob to the right to Power on, slide the mode button to BT mode.(if you want use wired audio source,choose the AUX or OPT accordingly) 4) Pairing - Pair B08+ with your bluetooth-enabled phone/PC/ tablet. • Set B08+ into the pairing mode, the LED flashes Blue / Red alternately fast. – First-time use: B08+ will auto enter the pairing mode (with clear memory). – Afterward: Long press button to enter the pairing mode. (The LED flashes Blue / Red alternately fast) • Activate bluetooth on your phone or another device and click B08+ to connect. • Wait and connected (For quick pairing, better keep them within 1 meter when pairing). 5) Enjoy your music. Slide the mode button to BT mode. long press the button to enter pairing mode. The blue and red LED will flash. Activate bluetooth on your phone and click B08+ to pair. Q : All cables are connected, but no sound out put? A : 1. Check if the POWER indicator is on, and turn on the POWER if it is not on. When the indicator light is still not on after turn on the power, you can find a laptop power and connect to test whether it is the machine fault or a power failure. 2. If the indicator or light is on, check whether the VOL knob is in the minimum position. If so, turn clockwise to normal Volume 3. If both of the above are normal, check the input device if it is paused, mute, or the volume is minimized. Q : Why do loudspeakers make a lot of electric noise? A : if you are not using the original factory standard power supply, please repla the power supply before testing. Many power supply in the market have large interference coefficiest, which will cause a lot of current sound. Q : Why connect signal line, not play music have interferential sound A : If you use unshielded siBnal lines, there will be interference signals enteri the power anplifier. If you hate the sound, you ar e advised to use the shielded sign lines or unplug the signal lines. MADE IN CHINA www.1mii.com Any questions? Contact: [email protected] (Response Time:4-24h,excl. holidays) MANUFACTURER FCC ID: 2AUFR-RT908 Scan the code to get more language instructions. 扫描二维码以获取更多语言使用说明书。 Scannen Sie den Code, um weitere Sprachanweisungen zu erhalten. Escanee el código para obtener más instrucciones de idioma. Scannez le code pour obtenir plus d'instructions linguistiques. コードをスキャンして、より多くの言語の説明を取得します。 https://1mii.com/download-2/ Input interface of audio Such as CD, DAC decoder, mobile phone, TV, ect.) Power ON/OFF Volume Control Treble Control AUX Mode Bluetooth Mode OPT Mode Bluetooth Pairing Button LED Indicators Bass Control ShenZhen 1Mii Technologies Limited. Address: 4th Fl, Bldg B, Runfeng Industrial Park, No. 4197 Baoan Blvd., Gushu Community, Xixiang St., Baoan Dist., Shenzhen, China. FCC Warning This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any inte rference received, including interference that may cause undesired oper…

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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 Amplifier Receiver Trade Mark: 1Mii Model Number: B08+, B08, B08Pro, B08S, B08C, DS300, DS300Pro, ZW08, ZW08Pro FCC ID: 2AUFR-RT908 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: Wireless Audio Amplifier Receiver Models No.: B08+, B08, B08Pro, B08S, B08C, DS300, DS300Pro, ZW08, ZW08Pro 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: 2021-01-29 Subject; Request for Confidentiality FCC ID: 2AUFR-RT908 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-RT908 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 7 1. EXTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 2 of 7 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 3 of 7 Fig.5 Fig.6 BT Antenna SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 4 of 7 Fig.7 Fig.8 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 5 of 7 Fig.9 Fig.10 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 6 of 7 Fig.9 Fig.10 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 7 of 7 Fig.11

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 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: L5.0cm*W2.0cm Label Location Wireless Audio Amplifier Receiver Model No.: B08+ FCC ID: 2AUFR-RT908

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 1. INTERIOR PHOTOGRAPHS Fig.1 Fig.2 Two antennas in parallel SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 Fig.5 Fig.6

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR‐RT908 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 4 FCC RF Exposure Evaluation 1. Product Information FCC ID: 2AUFR‐RT908 Product name Wireless Audio Amplifier Receiver Test Model B08+ Additional Model B08, B08Pro, B08S, B08C, DS300, DS300Pro, ZW08, ZW08Pro Model Declaration PCB board, structureandinternalofthesemodel(s)are the same, So noadditionalmodelsweretested Power supply Input: DC 12‐24V, 5AMax For AC Adapter Model: JYH5Z‐2400400‐BY Input: 100‐240V, 50/60Hz, 2.5A Output: DC 24V, 4A, 96W Modulation Type GFSK, π/4‐DQPSK,8‐DPSK for Bluetooth V5.0(DSS) Antenna Type External Antenna Antenna Gain 3dBi (maximum) Hardware version B08+ V1.0 Software version B08S‐qcc3031_6320_V0.0.4‐20201105‐1_79 Bluetooth Operation frequency 2402MHz‐2480MHz Bluetooth Version V5.0 Exposure category General population/uncontrolled environment EUT Type Production Unit Device Type Mobile device 2. Evaluation Method Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. In accordance with KDB447498D01 for Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the calculated/estimated, numerically modelled or measured field strengths or power density, is ≤ 1.0. The MPE ratio of each antenna is determined at the minimum test separation distance required by the operating configurations and exposure conditions of the host device, according to the ratio of field strengths or power density to MPE limit, at the test frequency. Either the maximum peak or spatially averaged results from measurements or numerical simulations may be used to determine the MPE ratios. Spatial averaging does not apply when MPE is estimated using simple calculations based on far‐field plane‐wave equivalent conditions. The antenna installation and operating requirements for the host device must meet the minimum test separation distances required by all antennas, in both standalone and simultaneous transmission operations, to satisfy compliance. 3. Limit 3. 1 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 1 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 2.1091: Radiofrequency radiation exposure evaluation: Mobile Devices 3. 2 Limit SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR‐RT908 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 4 Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane‐wave equivalent power density 4. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97‐01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 5. Antenna Information ES‐D4 can only use antennas certificated as follows provided by manufacturer; Antenna type and antenna number Operate frequency band Maximum antenna gain Notes External Antenna 2402MHz‐2480MHz 3dBiBT SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR‐RT908 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 4 6. Conducted Power Results [BT Classics] Mode Channel Frequency (MHz)Average Conducted Output Power (dBm) GFSK 0 2402 ‐2.845 39 2441 ‐1.564 78 2480 ‐1.084 π/4DQPSK 0 2402 ‐0.655 39 2441 0.573 78 2480 1.102 8‐DPSK 0 2402 ‐0.053 39 2441 1.182 78 2480 1.717 7. Manufacturing Tolerance [BT Classics] GFSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) ‐2.0 ‐1.0 ‐1.0 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) 0 0 1.0 Tolerance ±(dB) 1.0 1.0 1.0 8‐DPSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) 0 1.0 1.0 Tolerance ±(dB) 1.0 1.0 1.0 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR‐RT908 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 4 8. Evaluation Results 8.1 Standalone MPE Evaluation As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as we…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 Report No.: LCS201214177AEA Page 1 of 47 Appendix A RF Test Data for BT V5.0(BDR/EDR) (Conducted Measurement) Product Name: Wireless Audio Amplifier Receiver Trade Mark: 1Mii Test Model: B08+ 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 -2.845 21 PASS MCH -1.564 21 PASS HCH -1.084 21 PASS π/4DQPSK LCH -0.655 21 PASS MCH 0.573 21 PASS HCH 1.102 21 PASS 8DPSK LCH -0.053 21 PASS MCH 1.182 21 PASS HCH 1.717 21 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 2 of 47 Test Graphs GFSK/LCH GFSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 3 of 47 GFSK/HCH π/4DQPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 4 of 47 π/4DQPSK/MCH π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 5 of 47 8DPSK/LCH 8DPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 6 of 47 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 7 of 47 A.2 20dB Bandwidth Mode Channel. 20dB Bandwidth [MHz] Limit [MHz] Verdict GFSK LCH 0.9623 Not Specified PASS MCH 0.9627 Not Specified PASS HCH 0.9615 Not Specified PASS π/4DQPSK LCH 1.335 Not Specified PASS MCH 1.333 Not Specified PASS HCH 1.338 Not Specified PASS 8DPSK LCH 1.310 Not Specified PASS MCH 1.311 Not Specified PASS HCH 1.311 Not Specified PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 8 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 9 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 10 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 11 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 12 of 47 A.3 Carrier Frequency Separation Mode Channel. Carrier Frequency Separation [MHz] Limit [MHz] Verdict GFSK LCH 0.788 0.642 PASS MCH 0.976 0.642 PASS HCH 1.040 0.642 PASS π/4DQPSK LCH 0.964 0.892 PASS MCH 0.986 0.892 PASS HCH 1.086 0.892 PASS 8DPSK LCH 1.050 0.874 PASS MCH 0.960 0.874 PASS HCH 1.036 0.874 PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 13 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 14 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 15 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 16 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA 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-RT908 Report No.: LCS201214177AEA Page 18 of 47 8DPSK/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA 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 2.89 106.7 0.308 0.4 PASS DH5 MCH 2.89 106.7 0.308 0.4 PASS DH5 HCH 2.89 106.7 0.308 0.4 PASS π/4DQPSK 2DH5 LCH 2.89 106.7 0.308 0.4 PASS 2DH5 MCH 2.89 106.7 0.308 0.4 PASS 2DH5 HCH 2.89 106.7 0.308 0.4 PASS 8DPSK 3DH5 LCH 2.89 106.7 0.309 0.4 PASS 3DH5 MCH 2.89 106.7 0.309 0.4 PASS 3DH5 HCH 2.89 106.7 0.308 0.4 PASS Test Graphs GFSK_DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 20 of 47 GFSK_DH5/MCH GFSK_DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 21 of 47 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 22 of 47 π/4DQPSK _2DH5/HCH 8DPSK _3DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 23 of 47 8DPSK _3DH5/MCH 8DPSK _3DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 24 of 47 A.6 RF Conducted Spurious Emissions Mode Channel Pref [dBm] Max. Level [dBm] Limit [dBm] Verdict GFSK LCH -3.049 -37.709 -23.049 PASS MCH -1.76 -37.317 -21.760 PASS HCH -1.431 -37.341 -21.431 PASS π/4DQPSK LCH -3.168 -37.312 -23.168 PASS MCH -1.812 -36.801 -21.812 PASS HCH -1.666 -29.672 -21.666 PASS 8DPSK LCH -3.021 -37.908 -23.021 PASS MCH -1.758 -37.966 -21.758 PASS HCH -1.217 -37.699 -21.217 PASS GFSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 25 of 47 Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 26 of 47 GFSK_MCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 27 of 47 GFSK_HCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Report No.: LCS201214177AEA Page 28 of 47 π/4DQPSK_LCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2AUFR-RT908 Repor…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 Report No.: LCS201214177AEA 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 Amplifier Receiver Test Model: B08+ 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. : 201214177A-1, 201214177A-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-RT908 Report No.: LCS201214177AEA 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. ................. : LCS201214177AEA 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. .......................... : Wireless Audio Amplifier Receiver Trade Mark ..................................... : 1Mii Test Model...................................... : B08+ Ratings ........................................... : Input: DC 12-24V, 5A Max For AC Adapter Model: JYH5Z-2400400-BY Input: 100-240V, 50/60Hz, 2.5A Output: DC 24V, 4A, 96W 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-RT908 Report No.: LCS201214177AEA 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 Model............................... : B08+ EUT......................................... : Wireless Audio Amplifier 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.......................................... : 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. : LCS201214177AEA January 13, 2021 Date of issue SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 Report No.: LCS201214177AEA 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 January 13, 2021 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AUFR-RT908 Report No.: LCS201214177AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing …

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