The Vonyx WM6 Wireless Microphone Series delivers clear, noise-free wireless transmission and excellent sound reproduction. Simple setup and installation allow you to transmit clear sound instantly. These systems operate in the 863-865MHz UHF band and features 16 channels, signal to noise ratio performance and are provided with a bright and clear display. These are great microphone devices for party, speech, karaoke, sport lessons, meetings and so on.