Introduction
Thank you for choosing the Bietrun WXM09 Wireless Microphone System. This system is designed to provide high-quality audio for various applications, including stage performances, studio recordings, public speaking, and live broadcasts. This manual will guide you through the setup, operation, and maintenance of your new microphone system to ensure optimal performance and longevity.

Image: The Bietrun WXM09 Wireless Microphone System, showing two handheld microphones, a receiver, and two microphone stands with boom arms.
Package Contents
Please check the package to ensure all items are present:
- 2 x Bietrun WXM09 Wireless Microphones
- 1 x Wireless Receiver (6.35mm / 1/4 inch jack)
- 2 x Microphone Stands with Detachable Boom Arms
- 2 x Universal Microphone Clips
- 2 x Clip-on Cable Holders
- 1 x Carrying Bag
- 1 x USB Charging Cable for Receiver
- 1 x 6.35mm to 3.5mm Converter
- User Manual
Setup Guide
1. Assembling the Microphone Stand
- Unfold the tripod base of the microphone stand on a stable, flat surface.
- Insert the main vertical pole into the base and secure it with the tightening knob.
- Attach the boom arm to the main pole. The boom arm can be rotated 360° and adjusted for angle using the adjustment knobs.
- Alternatively, remove the boom arm and attach a microphone clip directly to the top of the main pole to convert it into a traditional straight mic stand.
- Adjust the height of the stand using the quick-release clamps on the vertical pole. The height can be adjusted from 28 to 89 inches.

Image: Illustration showing the adjustable height range of the microphone stand, from a lowest point of 25.2 inches to a maximum of 89 inches.

Image: Diagram illustrating how to remove the boom arm and install a microphone clip to convert the stand into a traditional straight microphone stand.
2. Installing Microphones and Receiver
- Insert two AA batteries (not included) into each wireless microphone. Ensure correct polarity.
- Attach a universal microphone clip to the boom arm or the top of the main pole. These clips are designed to hold most microphones on the market, suitable for mic diameters from 0.6 to 1.7 inches.
- Place your microphone into the clip.
- Charge the receiver using the provided USB charging cable. The receiver has a built-in 1200mAh rechargeable battery, providing approximately 8 hours of working time after 3 hours of charging.
- Plug the 6.35mm (1/4 inch) receiver directly into your audio device's MIC input port. Ensure your device has a 6.35mm or 1/4 inch jack port. A 6.35mm to 3.5mm converter is included for compatibility with 3.5mm MIC inputs.

Image: Diagram showing the power supply for the microphone (2 AA batteries) and the receiver (built-in 1200mAh rechargeable battery, 8 hours working time, 3 hours charging time).

Image: Visual representation of a 6.35mm (1/4 inch) jack port and a warning to ensure the device has this port before purchasing. Examples of compatible devices like outdoor speakers, street stereo speakers, PA systems, power amplifiers, car audio systems, and karaoke speakers are shown.

Image: Illustrates various multimedia devices compatible with the 6.35mm (1/4 inch) interface, including PA speaker systems, stereo speakers, desktop speakers, power amplifiers, car audio systems, and outdoor speakers. It also clarifies that the product is not for use with devices without a "MIC IN" port.
Operating Instructions
1. Powering On and Pairing
- Turn on the power switch on both the wireless microphone and the receiver.
- The microphone and receiver should automatically pair. The display on the microphone will show connection status.
2. Adjusting Microphone Settings
Each microphone features controls for fine-tuning your sound:
- Echo Adjustment: 10 levels
- Bass Adjustment: 8 levels
- Treble Adjustment: 5 levels
- Volume Adjustment: 5 levels

Image: Close-up of the Bietrun microphone's control panel, highlighting buttons for Echo, Treble, Bass, and Volume adjustments, along with the power button and display screen.
3. Bluetooth Connection (Receiver)
The receiver can also function as a Bluetooth receiver to play music from your audio device:
- Ensure the receiver is connected to an amplifier/mixer/speaker via its 6.35mm "MIC" input port.
- Turn on Bluetooth on your tablet, smartphone, or laptop.
- Search for and select "Bietrun" from the list of available devices to connect.
- Once connected, you can play music from your device through the audio system connected to the receiver.

Image: Diagram illustrating the Bluetooth connection process, showing the Bietrun receiver connected to an audio device (amplifier, DVD player, mixer, speaker) and receiving audio wirelessly from a tablet, smartphone, or laptop via Bluetooth.
4. Microphone Compatibility
The included microphone clips are versatile and can accommodate various microphone types:
- Wired Microphones
- Wireless Microphones
- Condenser Microphones (Shockproof bracket excluded)

Image: Visual guide showing how the microphone clips fit different types of microphones, including wired, wireless, and condenser microphones, and specifying suitability for mic diameters between 0.6 and 1.7 inches.
Maintenance and Care
- Cleaning: Wipe the microphones and stands with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the system in the provided carrying bag to protect it from dust and damage. The detachable design allows for space-saving storage.
- Battery Care: Remove batteries from microphones if they will not be used for an extended period to prevent leakage. Recharge the receiver regularly to maintain battery health.
- Handling: Avoid dropping the microphones or stands, as this can cause internal damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from microphone | Microphone or receiver not powered on; Batteries low; Receiver not properly connected to audio device; Microphone and receiver not paired. | Ensure both microphone and receiver are powered on. Replace microphone batteries or charge receiver. Check receiver connection to audio device's MIC input. Re-pair microphone and receiver if necessary (refer to pairing instructions). |
| Poor sound quality / Static | Interference; Microphone too far from receiver; Low battery. | Move away from other wireless devices or sources of interference. Reduce distance between microphone and receiver. Replace microphone batteries or charge receiver. |
| Microphone stand unstable | Tripod legs not fully extended; Knobs not tightened. | Ensure tripod legs are fully extended and locked. Tighten all adjustment knobs securely. |
| Bluetooth connection issues | Receiver not in pairing mode; Device not finding "Bietrun". | Ensure receiver is powered on and connected to an audio output. Restart Bluetooth on your device and try searching again. |
Specifications
| Feature | Detail |
|---|---|
| Model | WXM09 |
| Brand | Bietrun |
| Material | Metal (for stand) |
| Color | Black |
| Microphone Stand Height Range | 28 - 89 inches |
| Microphone Stand Base Type | Tripod |
| Microphone Power Supply | 2 x AA batteries (not included) |
| Receiver Battery | Built-in 1200mAh rechargeable battery |
| Receiver Working Time | Approx. 8 hours |
| Receiver Charging Time | Approx. 3 hours |
| Receiver Output Interface | 6.35mm (1/4 inch) Jack |
| Microphone Clip Compatibility | 0.6 - 1.7 inch mic diameter |
Warranty Information
Bietrun products are manufactured to the highest quality standards. This product comes with a standard manufacturer's warranty. Please retain your proof of purchase for any warranty claims. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact Bietrun customer support.
Customer Support
If you encounter any issues or have questions regarding your Bietrun WXM09 Wireless Microphone System, please do not hesitate to contact our customer support team. We are dedicated to providing excellent service and assistance.
For the most up-to-date contact information, please visit the official Bietrun website or refer to your product packaging.
You can also visit the Bietrun Store on Amazon: Bietrun Store





