Introduction

Figure 1: 1Mii Bluetooth 5.3 Music Receiver
This user manual provides detailed instructions for the 1Mii Bluetooth 5.3 Music Receiver (Model ML100). This device allows you to wirelessly stream audio from your Bluetooth-enabled devices to non-Bluetooth audio systems such as car stereos, home stereos, or wired headphones. Please read this manual thoroughly before using the product to ensure proper operation and to maximize its features.
Product Overview
Familiarize yourself with the components and controls of your 1Mii Bluetooth Music Receiver.

Figure 2: Product Overview and Control Features
- 1. Play/Pause Button: Also functions as the Bluetooth pairing button.
- 2. Volume Up / Next Track Button: Increases volume or skips to the next song.
- 3. Volume Down / Previous Track Button: Decreases volume or goes to the previous song.
- 4. Power Switch: ON/OFF slider.
- 5. AUX Port: 3.5mm audio output.
- 6. Built-in Microphone: For hands-free calls.
- 7. Charging Port: USB-C port for charging.
- LED Indicator: Provides status feedback (e.g., pairing, connected, low battery).

Figure 3: Package Contents
The package includes:
- 1 x 1Mii Bluetooth Receiver
- 1 x Type-C Charge Cable
- 1 x 3.5mm Audio Cable
- 1 x 3.5mm Metal Adapter
- 1 x User Manual (this document)
Setup
Charging the Device
Before first use, fully charge the 1Mii Bluetooth Receiver. Connect the provided Type-C charge cable to the charging port on the device and plug the other end into a USB power source (e.g., car charger, wall adapter, computer USB port). The LED indicator will show charging status. A full charge takes approximately 2 hours and provides up to 16 hours of continuous music playback or call time.

Figure 4: Battery Life and Charging
Connecting to an Audio System
The 1Mii Bluetooth Receiver can be connected to your audio system in two ways:
- Using the 3.5mm Metal Adapter (Direct Plug-in):
Plug the 3.5mm metal adapter directly into the AUX port of your car stereo or home stereo system. Then, plug the 1Mii Bluetooth Receiver onto the other end of the metal adapter.

Mode 1: Connect with AUX Metal Adapter
- Using the 3.5mm Audio Cable:
Connect one end of the provided 3.5mm audio cable to the AUX port on the 1Mii Bluetooth Receiver. Connect the other end of the 3.5mm audio cable to the AUX input of your car stereo, home stereo, or wired headphones.

Mode 2: Connect with 3.5mm Audio Cable

Figure 5: Wide Compatibility
Pairing with Your Bluetooth Device
Follow these steps to pair the 1Mii Bluetooth Receiver with your smartphone, tablet, or other Bluetooth-enabled device:
- Power On: Slide the ON/OFF switch to the "ON" position. The LED indicator will flash blue every 3 seconds. When turned on for the first time, it automatically enters pairing mode.
- Enter Pairing Mode: If the device is not automatically in pairing mode, press and hold the Play/Pause/Bluetooth pairing button for 5 seconds until the LED indicator flashes rapidly, indicating it is ready to pair.
- Enable Bluetooth: On your smartphone or Bluetooth device, go to the Bluetooth settings and enable Bluetooth.
- Select Device: Look for "ML100" in the list of available devices and select it to connect.
- Confirmation: Once successfully paired, the LED indicator will stop flashing and remain solid blue. You are now ready to play audio.

Figure 6: Plug, Power On, and Pair
The 1Mii Bluetooth 5.3 technology ensures instant pairing and maintains a strong and stable connection. It is backward compatible with Bluetooth 5.2/5.1/5.0/4.2/4.0/3.0/2.0 devices.

Figure 7: Latest Bluetooth 5.3 Technology
Operating Instructions
Once paired, you can control your audio playback and calls using the buttons on the 1Mii Bluetooth Receiver.
| Task | Button | Operation |
|---|---|---|
| Power on/off | ON/OFF Switch | Switch to "ON" or "OFF" |
| Pairing | Play/Pause/Bluetooth button | Press and hold for 5 seconds |
| Volume up / Next | + | Press once / Press and hold |
| Volume down / Previous | - | Press once / Press and hold |
| Activate Google Assistant or Siri | Play/Pause/Bluetooth button | Press and hold for 1 second |
| Answer/Hang up/Refuse a Call | Play/Pause/Bluetooth button | Press once (Answer/Hang up) / Press and hold for 1 second (Refuse) |
| Last number redial | Play/Pause/Bluetooth button | Double press |
| Clear the pairing list | + & - | Press and hold for 10 seconds |
The built-in microphone allows for hands-free calls, enhancing driving safety and convenience. You can activate your voice assistant (Google Assistant or Siri) by holding the Play/Pause button for 2 seconds.

Figure 8: Ensure Driving Safety with Hands-Free Calls
Maintenance
- Keep the device dry. Avoid exposure to moisture, rain, or liquids.
- Do not attempt to disassemble or modify the device. This will void the warranty and may cause damage.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Store the device in a cool, dry place when not in use.
- Avoid extreme temperatures.
Troubleshooting
If you encounter issues with your 1Mii Bluetooth Receiver, please refer to the following common solutions:
- Device not powering on: Ensure the battery is charged. Connect the device to a power source using the USB-C cable.
- Cannot pair with my device:
- Ensure the 1Mii receiver is in pairing mode (LED flashing rapidly).
- Make sure Bluetooth is enabled on your source device (phone, tablet).
- Move the receiver closer to your source device.
- Clear the pairing list on the 1Mii receiver by pressing and holding Volume + and Volume - buttons for 10 seconds, then try pairing again.
- Restart both the 1Mii receiver and your source device.
- No audio or low audio:
- Ensure the 1Mii receiver is properly connected to your audio system's AUX input.
- Check the volume levels on both the 1Mii receiver and your audio system/source device.
- Ensure the audio system is set to the correct input (AUX).
- Verify that the 1Mii receiver is paired and connected to your source device.
- Intermittent connection or audio dropouts:
- Reduce the distance between the 1Mii receiver and your source device.
- Avoid obstacles that may block the Bluetooth signal (e.g., thick walls, metal objects).
- Minimize interference from other wireless devices (e.g., Wi-Fi routers, other Bluetooth devices).
- Voice assistant not responding: Ensure you are pressing and holding the Play/Pause button for approximately 2 seconds.
Specifications
| Feature | Detail |
|---|---|
| Model Number | ML100 |
| Bluetooth Version | 5.3 (Backward compatible with 5.2/5.1/5.0/4.2/4.0/3.0/2.0) |
| Product Dimensions | 2.44 x 1.3 x 0.47 inches |
| Item Weight | 2.39 ounces |
| Battery Type | 1 Lithium Polymer battery (included) |
| Battery Life (Music/Calls) | Up to 16 hours |
| Charging Time | Approximately 2 hours |
| Connectivity Technology | Bluetooth, Auxiliary, USB |
| Power Source | Battery Powered |
| Material | Plastic, Metal |
Safety Information
Please observe the following safety guidelines:
- General safety warnings about potential interference with other wireless devices, battery handling, and temperature/humidity limitations may apply.
- Do not expose the device to extreme temperatures or direct sunlight for prolonged periods.
- Keep the device away from water and other liquids.
- Dispose of batteries properly according to local regulations.
- Do not use the device if it has been damaged.
Warranty and Support
For warranty information or technical support, please refer to the official 1Mii website or contact 1Mii customer service directly. The product is designed for reliable performance, and support is available for any operational queries or issues.
You can also find additional resources and a PDF version of the user manual at the following link: 1Mii Bluetooth Receiver User Manual (PDF)