Bietrun Wireless Microphone wxm04black Instruction Manual

1. Introduction

Thank you for choosing the Bietrun Wireless Microphone. This dynamic microphone system is designed for clear audio transmission and ease of use across various applications, including karaoke, public speaking, and musical performances. Please read this manual thoroughly to ensure proper setup and optimal performance.

2. Package Contents

• 1 x Bietrun Wireless Microphone
• 1 x Rechargeable Receiver (6.35mm Jack)
• 1 x 6.35mm to 3.5mm Adapter (Included in some packages)
• 1 x USB Charging Cable (for receiver)
• User Manual

Note: 2 x AA batteries for the microphone are not included and must be purchased separately.

3. Product Overview

Figure 1: Bietrun Wireless Microphone and Receiver

Figure 2: Detailed view of microphone components and display.

The microphone features an all-metal design for durability and a professional feel. It includes a built-in display for battery power and signal strength, along with a power/volume button. The receiver is compact and plugs directly into compatible audio equipment.

4. Setup

4.1. Battery Installation (Microphone)

1. Unscrew the bottom part of the microphone to access the battery compartment.
2. Insert 2 AA batteries, ensuring correct polarity (+/- direction).
3. Screw the bottom part back on securely.

Figure 3: Microphone battery installation and receiver charging ports.

4.2. Charging the Receiver

1. Connect the provided USB charging cable to the receiver's charging port.
2. Plug the other end of the USB cable into a 5V USB power source (e.g., phone charger, computer USB port).
3. The receiver has a built-in 650mAh battery, which takes approximately 3 hours to fully charge and provides up to 4 hours of use time.

4.3. Connecting to Audio Equipment

1. Plug the receiver (6.35mm jack) directly into the MIC input of your audio equipment (e.g., amplifier, speaker, mixer, karaoke machine).
2. If your device has a 3.5mm MIC input, use the included 6.35mm to 3.5mm adapter.
3. Important: Ensure you are plugging into a MIC input, not an AUX input, as this will result in no sound. Not compatible with Bluetooth speakers/laptops directly via AUX.

Figure 4: Correct connection to MIC input.

5. Operating Instructions

5.1. Power On/Off

1. Long press and hold the power button on both the microphone and the receiver to power them on.
2. The microphone display will show battery power and signal strength. The receiver's blue light will indicate connection status.
3. To power off, long press and hold the power button on both devices again.

5.2. Automatic Connection (Plug and Play)

The microphone and receiver are designed for automatic connection. Once both are powered on and within range, they should pair automatically, indicated by a steady blue light on the receiver.

Figure 5: Microphone power/volume and channel controls.

5.3. Volume Control

The microphone features a power/volume button. Press this button to adjust the microphone's output volume (levels 8-12).

5.4. Unidirectional Pickup

The microphone utilizes a professional moving-coil unidirectional core, which is ideal for capturing sound directly in front of the microphone while minimizing background noise. This is beneficial for speeches, singing, and interviews.

Figure 6: Unidirectional microphone pickup pattern.

6. Channel Adjustment

The Bietrun Wireless Microphone operates on 15 UHF adjustable channels to prevent interference. If you experience noise or use multiple microphones simultaneously:

1. Open the microphone battery cover.
2. Click the "HI LO" button (or the frequency change button as shown in Figure 5) to switch channels.
3. Ensure each microphone uses a different channel number, and ideally, choose channels that are far apart to minimize interference.

7. Compatible Devices

This wireless microphone system is compatible with equipment featuring a 6.35mm (1/4") MIC input interface. Compatible devices include:

• Amplifiers
• Audio Mixers
• Karaoke Machines
• PA Systems
• Speakers (with MIC input)
• Voice Amplifiers

For connecting to PCs, Apple iPhones, or Android phones, a genuine TRRS cable (USB-C to 3.5mm or Lightning to 3.5mm, not included) is required. Ensure the cable supports microphone input.

Figure 7: Examples of compatible multimedia devices.

8. Maintenance

• Keep the microphone and receiver dry and clean.
• Avoid exposing the devices to extreme temperatures or direct sunlight.
• When not in use for extended periods, remove AA batteries from the microphone to prevent leakage.
• Charge the receiver regularly to maintain battery health.

9. Troubleshooting

10. Specifications

11. Warranty and Support

For warranty information or technical support, please contact Bietrun customer service directly. Refer to the product packaging or the official Bietrun website for the most up-to-date contact details.