Rockville RWM-3US is a professional wireless microphone system designed for versatile use in various settings. With its 20 x 3 channel selection, you'll have ample options to find clear frequencies for your microphones. The system operates on the UHF frequency range of 500MHz to 599MHz, ensuring stable and reliable signal transmission. Each microphone features an LCD display that shows the channel frequency and battery level, providing you with real-time information.