1. Introduction
Thank you for choosing the LAICOMEIN Bluetooth 5.0 Auxiliary Audio Receiver. This device allows you to wirelessly stream audio from your Bluetooth-enabled devices (smartphones, tablets, laptops) to non-Bluetooth audio systems such as car stereos, home stereo systems, wired headphones, and speakers. Enjoy high-quality audio and hands-free calling with ease.
2. Package Contents
- LAICOMEIN Bluetooth 5.0 Auxiliary Audio Receiver
- 3.5mm Male to Male Connector
- 3.5mm Audio Cable
- Type-C Charging Cable
- User Manual (this document)
3. Product Overview
Familiarize yourself with the components of your LAICOMEIN Bluetooth Audio Receiver:
Image 1: LAICOMEIN Bluetooth Audio Receiver showing its various ports and buttons, along with the included 3.5mm male-to-male connector, 3.5mm audio cable, and Type-C charging cable.
- AUX Port: 3.5mm audio output to connect to your audio system.
- Indicator LED: Displays device status (pairing, connected, charging).
- Built-in Mic: For hands-free calling.
- Multifunction Button (MFB): Power on/off, Play/Pause, Answer/End/Reject calls, Redial.
- Next Song / Volume Up Button: Short press for next song, long press for volume up.
- Previous Song / Volume Down Button: Short press for previous song, long press for volume down.
- Type-C Charging Port: For charging the device.
4. Setup and Pairing
4.1. Charging the Device
Before first use, fully charge the receiver. Connect the supplied Type-C charging cable to the receiver's Type-C port and the other end to a USB power adapter (not included) or a computer's USB port.
- Charging: The LED indicator will show a specific color (e.g., red) while charging.
- Fully Charged: The LED indicator will change or turn off when charging is complete (approx. 2 hours).
- Battery Life: Up to 16 hours of continuous use on a full charge.
4.2. Power On/Off
- Power On: Press and hold the Multifunction Button (MFB) for approximately 3 seconds until the LED indicator flashes.
- Power Off: Press and hold the Multifunction Button (MFB) for approximately 3 seconds until the LED indicator turns off.
4.3. Bluetooth Pairing
- Ensure the receiver is fully charged.
- Power on the receiver. It will automatically enter pairing mode, indicated by the LED flashing rapidly (e.g., blue and red alternating).
- Enable Bluetooth on your smartphone, tablet, or other device.
- Search for Bluetooth devices and select "LAICOMEIN" (or similar name) from the list.
- Once successfully paired, the LED indicator will flash slowly or remain solid blue.
- The receiver will automatically reconnect to the last paired device when powered on, if it is within range.
5. Operating Instructions
5.1. Connecting to Audio Systems
After pairing with your Bluetooth device, connect the receiver to your desired audio system:
Image 2: The receiver connected to a car audio system, speaker, amplifier, and wired headphones, receiving audio wirelessly from a laptop, tablet, phone, or MP3 player.
- For Car Stereos/Home Stereos/Speakers: Use the supplied 3.5mm audio cable to connect the receiver's AUX port to the 3.5mm AUX input of your car stereo, home stereo, or speaker.
- For Wired Headphones: Plug your wired headphones directly into the receiver's AUX port.
5.2. Music Playback Control
| Action | Button Operation |
|---|---|
| Play/Pause | Short press the Multifunction Button (MFB) |
| Next Track | Short press the Next Song / Volume Up Button |
| Previous Track | Short press the Previous Song / Volume Down Button |
| Volume Up | Long press the Next Song / Volume Up Button |
| Volume Down | Long press the Previous Song / Volume Down Button |
5.3. Call Management
| Action | Button Operation |
|---|---|
| Answer Call | Short press the Multifunction Button (MFB) |
| End Call | Short press the Multifunction Button (MFB) during a call |
| Reject Call | Long press the Multifunction Button (MFB) for 2 seconds |
| Redial Last Number | Double press the Multifunction Button (MFB) |
Image 3: A user making a hands-free call in a car, highlighting the clear voice capture (CVC 8.0) and digital signal processing (DSP) features of the receiver.
5.4. Dual Device Connection
The LAICOMEIN Bluetooth receiver supports simultaneous connection to two Bluetooth devices.
Image 4: The receiver connected to two smartphones, allowing convenient switching between devices for calls or music.
- Pair the first device with the receiver as described in Section 4.3.
- Disable Bluetooth on the first device. The receiver will re-enter pairing mode.
- Pair the second device with the receiver.
- Enable Bluetooth on the first device. It should automatically reconnect to the receiver.
- You can now switch between the two connected devices for music playback or calls.
6. Maintenance
- Keep the device dry. Avoid exposure to moisture or liquids.
- Do not expose the device to extreme temperatures.
- 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.
7. Troubleshooting
| Problem | Solution |
|---|---|
| Device won't power on | Ensure the device is fully charged. Connect to a power source and try again. |
| Cannot pair with Bluetooth device | 1. Ensure the receiver is in pairing mode (LED flashing rapidly). 2. Make sure Bluetooth is enabled on your source device. 3. Move the receiver closer to your source device. 4. Clear the Bluetooth pairing list on your source device and try pairing again. |
| No audio output | 1. Ensure the receiver is correctly connected to your audio system via the 3.5mm cable. 2. Check the volume levels on both the receiver and your source device/audio system. 3. Ensure the audio system is set to the correct input (AUX). 4. Re-pair the receiver with your Bluetooth device. |
| Poor audio quality | 1. Move the receiver closer to your Bluetooth source device to reduce interference. 2. Ensure there are no obstacles between the receiver and the source device. 3. Check the quality of the audio file being played. |
| Calls not working | 1. Ensure your phone's audio output is routed to the Bluetooth receiver. 2. Check microphone permissions on your phone if applicable. |
8. Specifications
| Feature | Detail |
|---|---|
| Bluetooth Version | 5.0 |
| Bluetooth Range | Up to 10 meters (33 feet) without obstacles |
| Audio Output | 3.5mm AUX |
| Charging Port | Type-C |
| Charging Time | Approx. 2 hours |
| Battery Life | Up to 16 hours |
| Dual Connection | Yes, connect two devices simultaneously |
| Hands-Free Calling | Yes, with built-in microphone |
| Color | Black |
9. Warranty and Support
This LAICOMEIN product comes with a 2-year manufacturer's warranty from the date of purchase. This warranty covers manufacturing defects and workmanship.
For any questions, technical support, or warranty claims, please contact LAICOMEIN customer service through your purchase platform or the contact information provided with your product.