Bietrun Wireless Microphone for Portable Use

Plug and Play, Easy to Use: ●The device is compatible only with equipment that has a microphone input; it cannot be used with devices with AUX input, as this will result in no sound. (It is not compatible with Bluetooth speakers and laptops.) ●The device can be used with microphone-input speakers, singing machines, audio amplifiers, PA systems, mixers, voice amplifiers, and various streaming multimedia equipment. ●The display can show the battery power and signal strength in real-time, so you don't have to worry about the device suddenly stopping working.

Microphone Battery Powered and Rechargeable Receiver: ●The microphone does not come with batteries; we recommend using 2 AA Amazon Alkaline batteries. ●Ensure the battery is installed correctly, with the + and - directions properly aligned. ●The receiver should be charged for 5 hours before the first use. ●To power on, long-press and hold the microphone and receiver buttons. The rechargeable receiver has a built-in 650 mAh battery, providing 4 hours of working time and fully charging in 3 hours.

Unidirectional Microphone: ●The device is equipped with a built-in professional moving-coil unidirectional microphone core. When using, the mouth should be close to the top of the microphone to amplify the voice for conferences, speeches, outdoor events, church gatherings, family parties, open ceremonies, dance instruction, promotions, and more. ●If you are using multiple microphones simultaneously or encountering noise, please switch channels (open the microphone battery cover and click the "HI LO" button) to ensure each microphone has a different channel number and the channel numbers are spaced apart.

Quick Troubleshooting: 1. Ensure there is sufficient power for both the microphone and the receiver. 2. Confirm the equipment is connected with a microphone input, not other interfaces. 3. If you find no sound from the microphone, you need to re-pair the device: a. Turn off the receiver and microphone. b. Open the microphone battery cover. c. Press and hold the microphone (HI LO) button for 10 seconds or more until the display channel flashes. d. Quickly turn on the receiver and wait for the microphone channel display to stop flashing, and the receiver's blue light to remain on, indicating it's ready for use.

product information: