Introduction
The M-VAVE SWS12 is a high-performance 2.4G wireless earphone monitor audio system designed for musicians, performers, and audio enthusiasts. It provides a reliable and high-quality audio transmission solution, freeing you from the constraints of cables. The system includes a rechargeable transmitter and two receivers, offering clear, lossless sound for an immersive monitoring experience.

Key Features
- Lossless Audio Quality: Delivers professional-grade sound with 24bit/48KHz sampling rate for clear audio transmission.
- 2.4GHz Wireless Transmission: Utilizes a stable 2.4GHz frequency band for reliable wireless connectivity.
- Extended Range: Offers an effective outdoor transmission distance of up to 30 meters.
- Multi-Receiver Support: One transmitter can connect to multiple receivers simultaneously.
- Long Battery Life: Transmitter provides up to 24 hours of battery life, while receivers offer up to 6 hours.
- Versatile Working Modes: Supports Left Channel, Right Channel, Stereo, and Mute modes to suit various audio setups.
- Integrated Controls: Receivers feature volume adjustment and mute functions. The transmitter includes a one-button mute function.
Package Contents
Please check the box for the following items:
- Wireless Ear Return Transmitter x1
- Wireless Ear Return Receiver x2
- USB Charging Cable x1
- User Manual x1
Setup Guide
Follow these steps to set up your M-VAVE SWS12 system:
- Charge the Transmitter: Connect the provided USB charging cable to the USB Type-C port on the transmitter. Use a 5V1A charger for optimal charging. The receivers will charge automatically when docked in the transmitter.
- Connect the Transmitter to Audio Source: Use the included P2 cable to connect the transmitter's 'IN' port to your audio source (e.g., soundboard, audio interface, computer headphone output).
- Power On and Pair: Press and hold the power button on the transmitter to turn it on. Remove the receivers from the transmitter base. The receivers will flash green and then turn solid green, indicating successful pairing with the transmitter. The system is now ready for use.
- Connect Headphones to Receiver: Plug your earphones or headphones into the 3.5mm (P2) jack on the receiver.



Setup Demonstration Video
Video 1: M-VAVE SWS12 Setup and Pairing.
Operation
Power On/Off
- Transmitter: Press and hold the power button on the transmitter to turn it on or off.
- Receivers: Receivers automatically power on when removed from the transmitter base and power off when docked.
Volume Control
Each receiver features dedicated volume buttons (VOL+ and VOL-) to adjust the monitoring level directly.
Mute Function
- Transmitter Mute: The transmitter supports a one-button mute function. Refer to the device's specific button for this feature.
- Receiver Mute: Each receiver also has a mute function, typically integrated with the volume controls or a dedicated button.
Working Modes
The system offers four working modes: Left Channel, Right Channel, Stereo, and Mute. These modes allow for flexible audio routing and monitoring based on your specific needs. Consult the device's interface or additional documentation for instructions on how to switch between these modes.
Charging
The M-VAVE SWS12 system is equipped with built-in rechargeable lithium batteries.
- Transmitter Charging: Connect the USB Type-C charging cable to the transmitter's USB port and a 5V1A power adapter (not included). The battery indicator lights will show charging status.
- Receiver Charging: The receivers charge automatically when they are docked in the transmitter base. Ensure the transmitter is powered on or connected to a power source for the receivers to charge.
Full charge times may vary. The transmitter offers up to 24 hours of operation, and each receiver provides up to 6 hours.
Specifications
| Feature | Specification |
|---|---|
| Sampling Rate | 24bit/48KHz Lossless Digital Transmission |
| Wireless Frequency Band | 2.4GHz |
| Effective Transmission Distance | Up to 30 meters (outdoor) |
| Power Requirements | Built-in Lithium Batteries, USB Type-C Charging (5V1A recommended) |
| Frequency Response | 20Hz ~ 20KHz, +1dB/-3dB |
| Transmitter Battery Model | 803060 |
| Receiver Battery Model | 402030 |
| Transmitter Battery Capacity | 1800mAh |
| Receiver Battery Capacity | 200mAh |
| Battery Nominal Voltage | 3.7V |
| Transmitter Dimensions (LxWxH) | 95.04mm x 39.7mm x 38.12mm |
| Receiver Dimensions (LxW) | 31.1mm x 41.5mm |
| Transmitter Weight | 75g |
| Receiver Weight | 15g |
Troubleshooting
- No Sound/Poor Sound Quality:
- Ensure all cables are securely connected.
- Check if the transmitter and receivers are powered on and paired (solid green light on receivers).
- Verify the volume levels on both the audio source and the receivers.
- Confirm that the correct working mode (Left, Right, Stereo) is selected for your setup.
- Check for potential interference from other 2.4GHz devices. Try moving the units closer or away from other wireless equipment.
- Receivers Not Pairing:
- Ensure both the transmitter and receivers are sufficiently charged.
- Power cycle both the transmitter and receivers.
- Place receivers back into the transmitter base and then remove them again to re-initiate pairing.
- Battery Not Charging:
- Verify the USB Type-C cable is properly connected to both the transmitter and the power source.
- Ensure the power adapter is functioning and provides 5V1A output.
- For receivers, ensure they are correctly seated in the transmitter's charging docks.
- Latency Concerns: The M-VAVE SWS12 system is designed for low-latency performance suitable for monitoring. If you experience noticeable delay, ensure you are within the effective transmission distance and minimize potential wireless interference.
User Tips
- Expand Your Monitoring: Take advantage of the system's ability to connect multiple receivers to a single transmitter. This is ideal for bands or groups needing simultaneous monitoring.
- Quick Mute Access: Utilize the one-button mute function on the transmitter for immediate silence, or use the mute controls on individual receivers for personal control.
- Optimal Charging: Always use a 5V1A charger for the transmitter to ensure efficient and safe charging.
- Signal Integrity: For best performance, try to maintain a clear line of sight between the transmitter and receivers, especially in environments with many wireless devices.
Warranty and Support
This product comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the official M-VAVE website. Keep your purchase receipt as proof of purchase.







