GTD Audio 2x100 Selectable Channel UHF Wireless Microphone Karaoke Mic System (with Handheld, lavvelier Headset mics) 622HL

100 Selectable frequencies on each channel, up to 20 sets can be used at the same time Automatic frequency scanning to find and set the best available channel Automatic transmitter setup, the channel of the transmitter and receiver can easily synchronize Backlit LCD display showing RF level, AF level, Channel Frequency and mute status Range: Up to 400 feet ( 150 meters ). Frequency: 530Mhz - 580Mhz ( Adjustable )