1. Product Overview
The MOREGAX M3 Bluetooth 5.1 Receiver is designed to stream audio wirelessly from your Bluetooth-enabled devices (smartphones, tablets, laptops) to your home stereo, vintage speakers, or car stereo system. It supports multiple audio output options including RCA and 3.5mm AUX, and features playback from USB drives and TF cards. Additionally, it includes a 6.5mm microphone connector for singing and offers NFC for quick pairing. This device functions as a receiver only and cannot transmit audio to Bluetooth headphones or speakers.
2. Package Contents
- 1 x Bluetooth Adapter
- 1 x Mini Remote Control
- 1 x Bluetooth Antenna
- 1 x AUX 3.5mm cable
- 1 x RCA cable
- 1 x Type-C charging cable
- 1 x User Manual
3. Product Diagram
Familiarize yourself with the various interfaces and components of your MOREGAX M3 Bluetooth Receiver:

This diagram illustrates the various ports and features on the MOREGAX M3 Bluetooth Receiver, including the NFC sensing area, RCA audio output, 3.5mm AUX output, USB port, TF card slot, microphone input, charging port, and external antenna connection.
4. Setup Instructions
4.1 Power Connection
- Connect the provided Type-C charging cable to the receiver's charging port.
- Plug the other end of the cable into a standard USB power adapter (not included) or a USB port on your stereo system.
- Ensure the device is powered on.
4.2 Audio Connection
Choose one of the following methods to connect the receiver to your audio system:
- RCA Connection: Use the supplied RCA cable to connect the L/R audio output ports on the receiver to the corresponding L/R audio input ports on your home stereo or speakers.
- 3.5mm AUX Connection: Use the supplied 3.5mm AUX cable to connect the AUX output port on the receiver to the 3.5mm audio input port on your stereo or speakers.

The MOREGAX M3 Bluetooth Receiver seamlessly integrates with existing stereo systems, enabling wireless audio streaming to traditional speakers.
4.3 Bluetooth Pairing
- Ensure the receiver is powered on and the Bluetooth indicator light is blinking, indicating it is in pairing mode.
- On your smartphone, tablet, or laptop, enable Bluetooth and search for available devices.
- Select "MOREGAX M3" from the list of devices to connect.
- Once connected, the Bluetooth indicator light will become solid.
4.4 NFC Pairing (Android devices only)
For quick pairing with NFC-enabled Android phones and tablets:
- Ensure NFC is enabled on your Android device.
- Gently tap your Android device on the NFC sensing area of the MOREGAX M3 receiver.
- Confirm the pairing prompt on your device.

NFC wireless sensor pairing allows for instant connection by simply tapping a compatible Android device to the receiver.
5. Operating Instructions
5.1 Bluetooth Audio Playback
After successful Bluetooth pairing, play audio from your connected device. The sound will be transmitted wirelessly to your stereo system through the MOREGAX M3 receiver.
5.2 USB/TF Card Playback
The receiver supports direct audio playback from USB drives and TF cards.
- Insert a USB drive into the USB port or a TF card into the TF card slot on the receiver.
- The receiver will automatically detect the storage device and begin playing audio files.
- Use the remote control to navigate tracks, adjust volume, and control playback.
5.3 Microphone Function
The MOREGAX M3 includes a 6.5mm microphone input for singing along with your music.
- Plug a 6.5mm microphone into the Mic Interface on the receiver.
- Ensure an audio source (Bluetooth, USB, or TF card) is playing.
- Your voice from the microphone will be mixed with the playing audio and output through your connected speakers.

The microphone input allows users to sing along with any audio source playing through the receiver.
5.4 Remote Control Usage
The included remote control provides convenient operation of the receiver's functions.

The infrared remote control allows for easy management of playback, volume, and input modes from a distance.
- Power Button: Turns the device on or off.
- Volume +/-: Adjusts the audio output volume.
- Previous/Next Track: Skips between tracks during playback.
- Play/Pause: Controls audio playback.
- Mode Button (BT/USB/TF): Switches between Bluetooth, USB, and TF card input modes.
- EQ: Cycles through equalizer presets.
- MIC+/-: Adjusts microphone volume.
- ECH+/-: Adjusts microphone echo effect.
6. Maintenance
To ensure the longevity and optimal performance of your MOREGAX M3 Bluetooth Receiver, follow these maintenance guidelines:
- Keep the device in a dry environment, away from moisture and extreme temperatures.
- Clean the exterior with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Do not block the ventilation holes on the device.
- Avoid dropping or subjecting the device to strong impacts.
7. Troubleshooting
| Issue | Possible Solution |
|---|---|
| No power | Ensure the Type-C charging cable is securely connected and the power source is active. Check if the device's power button is pressed. |
| No sound output | Verify that the audio cables (RCA or 3.5mm AUX) are correctly connected to both the receiver and your stereo system. Check the volume levels on both the receiver and your audio system. Ensure the correct input mode is selected on the receiver (Bluetooth, USB, or TF). |
| Bluetooth device cannot pair | Ensure the receiver is in pairing mode (blinking Bluetooth indicator). Disable and re-enable Bluetooth on your source device. Move your source device closer to the receiver. Clear previous Bluetooth connections on your source device. |
| Intermittent audio or poor signal | Reduce the distance between the receiver and your Bluetooth source device. Avoid obstacles like walls, doors, and other wireless devices (Wi-Fi routers, wireless TV adapters) that may cause interference. Ensure the external antenna is properly attached and positioned. |
| Remote control not responding | Check the battery in the remote control and replace if necessary. Ensure there are no obstructions between the remote and the receiver's infrared sensor. Point the remote directly at the receiver. |
| USB/TF card not playing | Ensure the USB drive or TF card is inserted correctly. Verify that the audio files on the storage device are in a supported format. Select the correct input mode (USB or TF) using the remote control. |
| Microphone not working | Ensure the microphone is securely plugged into the 6.5mm Mic Interface. Check the microphone's power (if applicable). Adjust the MIC volume using the remote control. |
8. Product Specifications
| Brand | MOREGAX |
| Model Number | M3 |
| Connectivity Technology | Bluetooth 5.1 |
| Audio Output Mode | Stereo, Surround (5.1 channel configuration) |
| Connector Type | 3.5mm Jack, RCA, USB, TF Card, 6.5mm Mic |
| Control Method | Remote Control |
| Special Features | Portable, NFC Pairing, Microphone Input |
| Product Dimensions (D x W x H) | 3.8" x 2.6" x 0.9" |
| Built-in Battery | 500mAh Lithium Battery (6-8 hours playback) |

An internal view of the receiver showcasing its 500mAh battery, Bluetooth 5.1 chip, and signal capabilities.
9. Warranty Information
The MOREGAX M3 Bluetooth Receiver comes with a 1-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. For specific details regarding warranty claims and return policies, please refer to your purchase documentation or contact customer support.
10. Customer Support
For any questions, technical assistance, or support needs regarding your MOREGAX M3 Bluetooth Receiver, please contact our customer service team. You can reach us through the Amazon message system or use the contact information provided in this user manual. We are committed to providing trustworthy after-sales service to all our valued customers.