Bietrun UHF Wireless Microphone System mkk-928 User Manual

Introduction

This manual provides instructions for the Bietrun UHF Wireless Microphone System, model mkk-928. This system is designed for various applications including karaoke, public speaking, and performances, offering reliable wireless audio transmission. Please read this manual thoroughly before use to ensure proper operation and to maximize the product's lifespan.

Important Safety Information

• This device is designed to be plugged into a MIC input jack only. Do not plug into an AUX or Phone jack, as this will result in no sound or improper function.
• Ensure proper battery installation and charging procedures are followed to prevent damage or malfunction.
• Keep the device away from water, high temperatures, and direct sunlight.

Package Contents

Verify that all items are present in your package:

• 1 x Wireless Microphone
• 1 x Rechargeable Receiver
• 1 x 6.35mm to 3.5mm Adapter
• 1 x USB Charging Cable (for receiver)

Product Overview

Microphone and Receiver

The Bietrun wireless microphone system consists of a handheld microphone and a compact receiver, designed for ease of use and portability.

Image: The Bietrun wireless microphone (red) and its compact receiver.

Microphone Components

The microphone features a durable metal casing, a steel meshed head, and a high-quality capsule for clear audio capture.

Image: Detailed view of the microphone's steel meshed head and internal capsule.

Wireless Range

The system utilizes UHF technology to provide a stable wireless connection with a range of up to 160 feet (50 meters).

Image: Illustration of the 160ft UHF wireless signal range.

Setup Instructions

Microphone Battery Installation

The microphone requires two AA batteries (not included). To install:

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

Receiver Charging

The receiver has a built-in rechargeable battery. Charge it before first use and when the battery indicator is low.

1. Connect the receiver to a USB power source using the provided USB charging cable.
2. The receiver will fully charge in approximately 3 hours, providing about 4 hours of working time.

Image: Visual guide for installing AA batteries in the microphone and charging the receiver.

Connecting to Audio Equipment

The receiver is designed to connect to devices with a 6.35mm (1/4") MIC input jack.

1. Plug the receiver directly into the 6.35mm MIC input of your audio equipment (e.g., speaker, amplifier, karaoke machine, PA system).
2. If your device has a 3.5mm MIC input, use the included 6.35mm to 3.5mm adapter.

Important Note:

• Always connect to a dedicated MIC input. Connecting to an AUX input will not produce sound.
• This system is not compatible with Bluetooth speakers or MacBooks.

Image: Connection methods for the receiver to various audio devices.

Operating Instructions

Power On/Off and Pairing

1. Ensure the receiver is plugged into your audio equipment and powered on.
2. Press the power button on the microphone to turn it on. The microphone and receiver will automatically pair.
3. The microphone's display will show battery power and signal strength.

Adjusting Volume and Changing Channels

The microphone features controls for adjusting volume and changing channels to prevent interference.

• Volume Adjustment: Use the dedicated switch on the microphone to control the output volume (typically levels 8-12).
• Channel Changing: To avoid interference, especially when using multiple microphones, press the channel button on the microphone to cycle through the 15 available UHF frequency bands.

Image: Microphone controls for volume and channel selection.

Maintenance

Battery Care

• For the microphone, use high-quality AA alkaline batteries. Remove batteries if the microphone will not be used for an extended period to prevent leakage.
• Charge the receiver regularly to maintain battery health and ensure optimal performance. Avoid overcharging.

Cleaning

• Wipe the microphone and receiver with a soft, dry cloth.
• Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the finish or internal components.

Storage

• Store the system in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
• Keep out of reach of children.

Troubleshooting

Common Issues and Solutions

• No Sound or Intermittent Sound:
  1. Ensure both the microphone and receiver have sufficient power. Check battery levels on the microphone display and receiver indicator.
  2. Verify that the receiver is connected to a MIC input on your audio equipment, not an AUX input.
  3. If no sound from one or both microphones, re-pair the devices:
     • 1. Turn off both the receiver and microphone.
     • 2. Open the microphone battery cap.
     • 3. Press and hold the microphone's (HI LO) button for 10 seconds or more until the display channel flashes.
     • 4. Quickly turn on the receiver. Wait for the microphone channel display to stop flashing, and the blue light of the receiver to become solid. The devices are now re-paired.
  4. If using multiple microphones simultaneously, ensure they are on different channels to avoid interference. Refer to the channel changing instructions in the Operating Instructions section.
• Poor Sound Quality or Static:
  1. Check for sources of interference (e.g., other wireless devices, Wi-Fi routers) and move away from them.
  2. Change the operating channel on the microphone.
  3. Ensure the microphone is within the optimal operating range (up to 160 feet) of the receiver.

Specifications

Detailed technical specifications for the Bietrun UHF Wireless Microphone System mkk-928:

Image: Physical dimensions of the microphone and receiver.

Warranty and Support

For product support, technical assistance, or warranty inquiries, please contact Bietrun customer service through the retailer where you purchased the product. Please retain your proof of purchase for warranty claims. Specific warranty terms may vary; refer to your purchase documentation for details.