1. Introduction
Thank you for purchasing the Bietrun Wireless Microphone WXM19 with Mic Stand. This user manual provides detailed instructions for the proper setup, operation, and maintenance of your new wireless microphone system and accompanying microphone stand. Please read this manual thoroughly before use to ensure optimal performance and longevity of the product.

Figure 1.1: The Bietrun Wireless Microphone WXM19 system, including two wireless microphones, a receiver, charging cables, and a microphone stand.
2. Package Contents
Please verify that all items listed below are included in your package. If any items are missing or damaged, please contact customer support.
- Round base metal Mic Stand x 1
- Wireless Microphones x 2 (WXM19 model)
- Mic Clips x 2
- Cable Clips x 2
- Portable Storage Box x 1
- USB Charging Cable x 1
- 6.35mm to 3.5mm Converter x 1
- User Manual x 1
3. Key Features
- Heavy Duty Metal Round Base: The microphone stand features a solid die-cast metal base with a 10.24-inch diameter and 5.64 lbs weight, ensuring stability. Non-slip pads are included on the bottom to prevent movement.

Figure 3.1: Detail of the microphone stand's heavy-duty round base, highlighting its 10.24-inch diameter and non-slip pads.
- Height & Angle Adjustable: The microphone stand's height is adjustable from 24 inches to 67 inches, easily set with an adjustable clutch. The included mic clip is 180° rotatable for flexible positioning.

Figure 3.2: Illustration of the microphone stand's adjustable height feature, ranging from 24 inches (60 cm) to 67 inches (170 cm).
- Detachable & Portable Design: The boom mic stand can be disassembled into two parts for easy transport and storage, ideal for stage, studio, concerts, and outdoor performances.
- Wide Applications: Comes with two styles of microphone clip holders and a standard 5/8'' thread, compatible with most handheld, wireless, and wired microphones (e.g., Shure SM58, Samson Q2U). Includes two clip-on cable holders for neat cable management.

Figure 3.3: Examples of various microphones, including Samson Q2U, Shure SM58, retro, condenser, wireless, and wired microphones, demonstrating compatibility with the included clips and screw adapter.
- Rechargeable Microphones & Bluetooth Receiver: The wireless microphones and receiver are rechargeable, offering 7+ hours of working time after 3-4 hours of charging.

Figure 3.4: Visual representation of the charging process for the wireless microphones and receiver, indicating a 3-4 hour charging time for 7+ hours of working time.
- Long & Stable Wireless Signal: Offers a UHF wireless distance of up to 240 feet in open spaces and Bluetooth connectivity up to 32 feet (10 meters).

Figure 3.5: Illustration of the wireless signal range, showing UHF distance up to 240 feet and Bluetooth distance up to 32 feet (10 meters).
- High-Quality Unidirectional Dynamic Microphone: Features a microphone with 95dB signal-to-noise ratio and a frequency response of 50Hz - 18kHz, designed for clear sound capture. Includes a steel meshed head, LED light ring, and clear white display.

Figure 3.6: Detailed view of the unidirectional dynamic microphone, showcasing its steel meshed head, LED light ring, and clear white display.
4. Setup Guide
4.1 Assembling the Microphone Stand
- Unpack all components of the microphone stand from the portable storage box.
- Screw the main pole into the heavy-duty metal round base until secure.
- Attach the desired microphone clip to the top of the stand. Ensure it is tightened securely.
- Adjust the height of the stand using the adjustable clutch to your preferred level (24 to 67 inches).
- If using, attach the cable clips to the stand pole to manage microphone cables neatly.
4.2 Charging the Microphones and Receiver
Before first use, fully charge both wireless microphones and the receiver.
- Connect the USB charging cable to the charging port on each microphone and the receiver.
- Plug the other end of the USB cable into a standard USB power adapter (not included) or a computer USB port.
- Charging typically takes 3-4 hours for a full charge. The indicator light will change to show charging status (refer to the device's specific indicator behavior).
4.3 Connecting the Wireless System (Plug & Play)
The Bietrun WXM19 system is designed for simple plug-and-play operation.
- Step 1: Turn on the receiver. Locate the power button on the receiver and press it to turn it on.
- Step 2: Turn on the microphone. Press the power button on each wireless microphone to turn them on. The microphones and receiver should automatically pair.
- Step 3: Plug the receiver into a speaker or audio device. Insert the receiver's 6.35mm (1/4 inch) jack directly into the "MIC IN" input port of your amplifier, mixer, or speaker. If your device has a 3.5mm (1/8 inch) MIC IN port, use the included 6.35mm to 3.5mm converter.

Figure 4.1: Visual guide for the three-step plug-and-play connection process: turning on the receiver, turning on the microphone, and plugging the receiver into an audio input.
IMPORTANT: DO NOT use the receiver with audio devices without a dedicated "MIC IN" input. Using it with "LINE IN" or "AUX IN" ports may result in no sound or poor audio quality.

Figure 4.2: Compatibility chart for the receiver, indicating that it should only be connected to MIC INPUT ports (3.5mm or 6.35mm) and not LINE IN / AUX IN ports.
4.4 Supported Multimedia Devices
The Bietrun WXM19 system can be connected to various audio devices with a 6.35mm "MIC" input port, including:
- Outdoor Speakers
- Stereo Speakers
- PA Speaker Systems
- Power Amplifiers
- Car Audio Systems (with appropriate input)
- Desktop Speakers (with appropriate input)
5. Operating Instructions
5.1 Microphone Operation
- Power On/Off: Press and hold the PWR/VOL button on the microphone to turn it on or off.
- Volume Adjustment: Briefly press the PWR/VOL button to cycle through volume levels. The clear white display will show the current volume.
- Channel Switching: The microphone and receiver automatically pair. If interference occurs or you need to change channels, press the CH button on the receiver to switch frequencies. The microphones will automatically follow.
- Battery Indicator: The display on the microphone shows the battery level. Recharge when the battery icon is low.
5.2 Using the Microphone Stand
- Height Adjustment: Loosen the clutch on the stand, extend or retract the pole to the desired height, and then tighten the clutch firmly to secure.
- Mic Clip Angle: The mic clip can be rotated 180 degrees. Adjust the angle to position the microphone optimally for sound capture.
- Cable Management: Use the provided cable clips to secure microphone cables along the stand, preventing tangles and trip hazards.
6. Maintenance
- Cleaning: Use a soft, dry cloth to wipe down the microphones, receiver, and stand. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the system in the portable storage box in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the microphones and receiver frequently. Recharge them regularly, even if not in constant use.
- Avoid Moisture: Keep all components away from water and high humidity to prevent damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from microphone. |
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| Sound is distorted or intermittent. |
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| Microphone stand is wobbly. |
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8. Specifications
| Feature | Detail |
|---|---|
| Model Number | WXM19 |
| Brand | Bietrun |
| Microphone Type | Unidirectional Dynamic |
| Frequency Response | 50Hz - 18kHz |
| Signal-to-Noise Ratio (SNR) | 95dB |
| Wireless Technology | UHF, Bluetooth |
| UHF Wireless Range | Up to 240 feet (open place) |
| Bluetooth Range | Up to 32 feet (10 meters) |
| Charging Time | 3-4 hours |
| Working Time | 7+ hours |
| Mic Stand Base Material | Solid Die-cast Metal |
| Mic Stand Base Diameter | 10.24 inches |
| Mic Stand Base Weight | 5.64 lbs |
| Mic Stand Height Adjustment | 24 inches to 67 inches |
| Color | Black |
9. Warranty & Support
Bietrun provides a One Year Warranty for the WXM19 Wireless Microphone with Mic Stand. This warranty covers manufacturing defects and ensures free replacement service for eligible issues.
For any questions, technical assistance, or warranty claims, please contact Bietrun customer support through the retailer where you purchased the product or visit the official Bietrun website for contact information.
Customer Support: Please refer to your purchase platform or the Bietrun official website for the most up-to-date contact information.





