1Mii B03Pro+ & ML100Pro User Manual

1. Introduction

Thank you for choosing the 1Mii B03Pro+ Bluetooth 5.3 Transmitter Receiver and the 1Mii ML100Pro Bluetooth Aux Adapter. These devices are designed to enhance your audio experience by providing high-quality wireless audio transmission and reception, along with convenient hands-free capabilities for your car or home stereo systems.

1.1. Product Overview

The 1Mii B03Pro+ is a versatile Bluetooth 5.3 device that functions as both a transmitter (TX) and a receiver (RX). It supports the high-resolution LDAC codec, ensuring superior audio quality for your TV and home stereo systems. Its intuitive screen display simplifies pairing and operation. The unique bypass mode allows simultaneous audio output to both wireless headphones and wired speakers.

The 1Mii ML100Pro is a compact Bluetooth aux adapter, also supporting LDAC for high-resolution audio. It is ideal for car audio systems and home stereos, offering seamless wireless music streaming and a built-in microphone for clear hands-free calling.

Image: The 1Mii B03Pro+ Bluetooth Transmitter Receiver (left) and the 1Mii ML100Pro Bluetooth Aux Adapter (right).

1.2. Package Contents

Please check the package for the following items:

• 1 x 1Mii B03Pro+ Bluetooth Adapter
• 1 x 1Mii ML100Pro Bluetooth Receiver
• 1 x USB Power Cable
• 1 x 3.5mm to RCA Audio Cable
• 1 x 3.5mm Audio Cable
• 1 x Optical Cable
• 1 x Power Adapter
• 1 x Type-C Charge Cable (for ML100Pro)
• 1 x 3.5mm Metal Adapter (for ML100Pro)
• 2 x User Manuals (one for each device)

Image: The 1Mii B03Pro+ Bluetooth Adapter and its accompanying cables and power adapter.

Image: The 1Mii ML100Pro Bluetooth Receiver, showing its connection and pairing process, along with its accessories.

2. Safety Information

Please read all safety instructions carefully before using the product. Failure to follow these instructions may result in damage to the product or personal injury.

• Do not expose the device to extreme temperatures, humidity, or corrosive environments.
• Do not disassemble or modify the device. This will void the warranty.
• Keep the device away from water and other liquids.
• Use only the provided power adapter and cables.
• Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.

3. B03Pro+ Product Features

The 1Mii B03Pro+ offers advanced features for a superior audio experience:

• High-Resolution LDAC Support: Streams high-resolution audio up to 24-bit/96kHz in both transmit (TX) and receive (RX) modes. Ensure your paired device also supports LDAC or aptX HD for optimal performance.
• Pass-through Mode (TX Bypass): Allows simultaneous audio output to both wireless headphones and a wired TV soundbar. This is ideal for shared viewing experiences where different volume levels are desired.
• Screen Display: Features a clear LCD screen for easy navigation, device selection, and status monitoring.
• Volume Control: Dedicated buttons for adjusting audio volume directly on the device.

Image: The 1Mii B03Pro+ with its clear LCD display, showing pairing information.

Image: Close-up of the 1Mii B03Pro+ highlighting its LDAC high-resolution audio support.

Image: Diagram illustrating the B03Pro+'s Transmitter + Bypass Mode, allowing audio to both headphones and a soundbar simultaneously.

4. ML100Pro Product Features

The 1Mii ML100Pro is designed for portability and convenience:

• High-Resolution LDAC Audio: Delivers crystal-clear, high-resolution wireless audio, perfect for car and home audio systems.
• Hands-Free Convenience: Equipped with a built-in microphone for clear hands-free calling while driving, enhancing safety and connectivity.
• Wide Compatibility: Easily connects to various devices including phones, laptops, tablets, MP4 players, speakers, car audio systems, amplifiers, and wired headphones.

Image: Close-up of the compact 1Mii ML100Pro Wireless Receiver.

Image: The 1Mii ML100Pro in a car setting, demonstrating its hands-free streaming capability for calls and music.

Image: Diagram showing the wide compatibility of the 1Mii ML100Pro with various audio devices.

5. Setup & Installation

5.1. 1Mii B03Pro+ Setup

5.1.1. Transmitter (TX) Mode Setup (Connecting to TV/Audio Source)

1. Connect Power: Plug the USB power cable into the B03Pro+ and connect it to a power source (e.g., TV USB port, wall adapter).
2. Connect Audio Input: Use the appropriate audio cable (Optical, 3.5mm, or RCA) to connect the B03Pro+ to your TV, AV receiver, or other audio source's audio output port.
3. Power On: Turn on the B03Pro+. It will automatically enter TX mode if no audio input is detected in RX mode.
4. Pairing: The B03Pro+ will automatically enter pairing mode (indicated on the screen). Put your Bluetooth headphones or speaker into pairing mode. Select your device from the B03Pro+'s screen and confirm to pair.

5.1.2. Receiver (RX) Mode Setup (Connecting to Wired Speakers/Headphones)

1. Connect Power: Plug the USB power cable into the B03Pro+ and connect it to a power source.
2. Connect Audio Output: Use the appropriate audio cable (3.5mm or RCA) to connect the B03Pro+ to your wired speakers, amplifier, or headphones' audio input port.
3. Switch to RX Mode: If the device is in TX mode, switch it to RX mode using the mode switch or on-screen menu.
4. Pairing: The B03Pro+ will enter pairing mode. On your phone, tablet, or computer, enable Bluetooth and search for "1Mii B03Pro+" to connect.

5.2. 1Mii ML100Pro Setup

1. Charge Device: Before first use, fully charge the ML100Pro using the provided Type-C charge cable.
2. Connect to Audio System: Plug the ML100Pro into the AUX input of your car stereo or home audio system using the 3.5mm audio cable or the 3.5mm metal adapter.
3. Power On: Slide the power switch to the 'ON' position. The device will automatically enter pairing mode.
4. Pairing: On your smartphone or other Bluetooth-enabled device, search for "1Mii ML100Pro" in the Bluetooth settings and connect.
5. Play Audio: Once connected, you can stream music wirelessly from your device to your car or home stereo.

6. Operating Instructions

6.1. 1Mii B03Pro+ Operation

• Mode Switching: Use the dedicated switch or on-screen menu to toggle between Transmitter (TX) and Receiver (RX) modes.
• Pairing New Devices: In TX or RX mode, press the pairing button or navigate the screen to enter pairing mode. Select the desired device from the list on the screen.
• Volume Control: Use the '+' and '-' buttons on the device to adjust the output volume.
• Bypass Mode: When in TX mode, ensure your wired audio connection (e.g., soundbar) is active. The B03Pro+ will automatically pass through audio to the wired connection while simultaneously transmitting to paired Bluetooth headphones.
• LDAC Activation: LDAC is automatically enabled when both the B03Pro+ and the connected Bluetooth device support it. The screen will indicate the active codec.

6.2. 1Mii ML100Pro Operation

• Music Playback: Once paired, simply play music from your connected device. The audio will be streamed wirelessly to your car or home stereo.
• Hands-Free Calling: When a call comes in, the ML100Pro will automatically switch to call mode. Press the multi-function button (usually the play/pause button) to answer or end a call. The built-in microphone will pick up your voice.
• Volume Control: Adjust volume via your connected smartphone or the car/home stereo system.
• Reconnection: The ML100Pro will automatically attempt to reconnect to the last paired device when powered on.

7. Maintenance

• Cleaning: Wipe the devices with a soft, dry, lint-free cloth. Do not use liquid cleaners or aerosols.
• Storage: Store the devices in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
• Battery Care (ML100Pro): For optimal battery life, avoid fully discharging the ML100Pro frequently. Charge it regularly, even if not in constant use.

8. Troubleshooting

8.1. No Sound / Poor Audio Quality

• Check Connections: Ensure all audio cables are securely connected to the correct input/output ports on both the 1Mii device and your audio system.
• Volume Levels: Verify that the volume is turned up on both the 1Mii device, your source device (phone, TV), and your receiving device (headphones, speakers).
• Correct Mode: Ensure the B03Pro+ is in the correct mode (TX for transmitting, RX for receiving).
• Codec Compatibility: For LDAC, ensure both the 1Mii device and the paired Bluetooth device support LDAC. If not, it will default to another compatible codec like aptX or SBC.
• Interference: Move the devices closer to each other and away from potential sources of interference (e.g., Wi-Fi routers, microwaves).

8.2. Cannot Pair Devices

• Pairing Mode: Ensure both the 1Mii device and the target Bluetooth device are in pairing mode.
• Clear Pairing History: On your source device (phone, TV), try forgetting or deleting previous Bluetooth connections. On the 1Mii device, refer to its specific instructions for clearing pairing history if available.
• Restart Devices: Turn off and then turn on both the 1Mii device and the device you are trying to pair.
• Distance: Keep the devices within close proximity (within 1 meter) during the pairing process.

8.3. ML100Pro Battery Not Charging

• Check Cable: Ensure the Type-C charging cable is securely connected to both the ML100Pro and the power source.
• Power Source: Try a different USB port or wall adapter.

9. Specifications

10. Warranty & Support

1Mii products come with a standard manufacturer's warranty. For detailed warranty information, technical support, or customer service inquiries, please refer to the warranty card included in your package or visit the official 1Mii website. Please retain your proof of purchase for warranty claims.