Introduction
Welcome to the user manual for your Bietrun Rechargeable Wireless Microphone System. This system provides high-quality audio for various applications, including karaoke, meetings, singing, church events, and weddings. Please read this manual carefully to ensure proper setup and operation.
Package Contents
Verify that all items are included in your package:
- Microphone x 2
- Receiver x 1
- USB Charging Cable x 1
- Anti-roll protector x 1
- User Manual x 1
Product Overview
The Bietrun wireless microphone system consists of two handheld microphones and a compact receiver.
Figure 1: Complete Bietrun Wireless Microphone System components.
Microphone Features
Figure 2: Detailed view of the microphone features.
- Steel Meshed Head: Durable microphone grille.
- LED Light Ring: Illuminates green when active, red when charging.
- Clear White Display: Shows battery level and channel number.
- PWR-VOL Button: Power on/off and volume control.
- DC 5V IN / CH Port: USB-C charging port and channel adjustment button.
Receiver Features
Figure 3: Detailed view of the receiver features.
- 6.35mm (1/4'') Output Jack: Connects to audio input devices.
- USB-C Charging Port (DC 5V): For charging the receiver.
- Power Button: Long press to power on/off, short press to turn on/off Bluetooth.
- Indicator Lights: PWR/CHR (Power/Charging), A (Mic A active), BT (Bluetooth active), B (Mic B active).
Setup
- Charge the Microphones and Receiver: Before first use, fully charge both microphones and the receiver using the provided USB charging cable. The LED ring on the microphone will be red while charging and turn green when fully charged. The receiver's PWR/CHR light will be red while charging and turn off when fully charged.
Figure 4: Charging the microphones and receiver simultaneously.
- Connect the Receiver: Plug the receiver into a 6.35mm (1/4'') microphone input port on your audio device (e.g., party speaker, singing machine, amplifier, PA system, audio interface). If your device has a 3.5mm (1/8'') input, use the included 6.35mm to 3.5mm adapter.
Figure 5: Connecting the receiver to compatible multimedia devices.
- Power On Receiver: Long press the POWER button on the receiver to turn it on. The indicator lights will illuminate.
- Power On Microphones: Press the PWR-VOL button on each microphone to turn them on. The microphones will automatically connect to the receiver.
Figure 6: Quick setup guide for the microphone system.
Operating Instructions
Microphone Operation
- Power On/Off: Press the PWR-VOL button on the microphone.
- Volume Adjustment: Short press the PWR-VOL button to cycle through volume levels.
- Channel Adjustment: If experiencing interference or using multiple sets, short press the "CH" button located near the charging port to change the microphone's frequency channel. Ensure each microphone operates on a different channel to avoid interference. There are 15 adjustable channels.
Receiver Operation
- Power On/Off: Long press the POWER button.
- Bluetooth Function: Short press the POWER button on the receiver to toggle Bluetooth on/off. When Bluetooth is on, the "BT" indicator light will illuminate.
- Pairing via Bluetooth: On your smartphone, tablet, or laptop, search for Bluetooth devices and select "Bietrun" to connect. Once connected, you can play music through your audio device using the receiver as a Bluetooth receiver.
Figure 7: Connecting to the receiver via Bluetooth.
Wireless Range
The system utilizes UHF frequency for stable signal transmission up to 240 feet (75 meters) in open areas. Bluetooth range is approximately 32 feet (10 meters).
Figure 8: Wireless signal range capabilities.
Unidirectional Microphone Core
The microphones feature a dynamic unidirectional core, designed to pick up sound primarily from the front, reducing background noise and feedback.
Figure 9: Unidirectional microphone pickup pattern.
Charging
Both the microphones and the receiver are equipped with built-in 1200mAh rechargeable lithium-ion batteries.
- Working Time: Up to 7 hours.
- Charging Time: 3 to 4 hours.
- Use the provided USB charging cable to charge both microphones and the receiver simultaneously.
Figure 10: Battery life and charging details.
Maintenance
- Keep the microphones and receiver dry. Avoid exposure to water or excessive humidity.
- Clean the devices with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Store the system in a cool, dry place when not in use.
- Avoid dropping the microphones, as this can damage internal components.
- Regularly charge the batteries to maintain their lifespan, even if not used frequently.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from microphone | Microphone or receiver not powered on; Low battery; Incorrect connection; Interference. | Ensure both are powered on and charged. Check all cable connections. Change microphone channel. |
| Interference or static noise | Other wireless devices nearby; Microphones on same channel. | Change microphone channel. Move away from other electronic devices. |
| Bluetooth not connecting | Bluetooth not enabled on receiver; Device too far; Incorrect pairing. | Short press receiver power button to enable Bluetooth. Ensure device is within 10m. Search for "Bietrun" and pair. |
| Short battery life | Not fully charged; Old battery. | Ensure full charge (3-4 hours). If issue persists, contact customer support. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Bietrun |
| Model Name | WXM19 |
| Connectivity Technology | UHF |
| Microphone Form Factor | Handheld |
| Polar Pattern | Unidirectional |
| Audio Sensitivity | 95 dB |
| Frequency Response | 50Hz - 16KHz |
| Number of Channels | 15 |
| Power Source | Rechargeable Lithium Polymer Battery |
| Battery Capacity | 1200mAh (Microphone & Receiver) |
| Working Time | Up to 7 hours |
| Charging Time | 3-4 hours |
| Material | Alloy Steel |
| Item Weight | 1.94 pounds |
| Package Dimensions | 12.13 x 6.57 x 2.6 inches |
| Compatible Devices | Partybox, ION PA Speaker, Sony SRS XP, Mixer, Karaoke Machine, AMP, PA System, Speaker with Mic |
| Connector Type | 3.5 mm Jack, 6.35 mm Jack |
Official Product Video
Video: Bietrun UHF Wireless Microphone Rechargeable with Bluetooth. This video demonstrates the features and setup of the Bietrun wireless microphone system.
Warranty and Support
For warranty information or technical support, please refer to the contact details provided on the product packaging or visit the official Bietrun website.
You can also visit the Bietrun Store on Amazon: Bietrun Store
