Rockville RWM-4US is a professional wireless microphone system that offers exceptional sound quality and reliable performance for various applications. With its four channels and 20 selectable frequencies, it provides ample options for interference-free operation. The system includes four microphones with LCD displays, a full-metal rack-mountable receiver, antennas, cables, and batteries, making it a complete solution for your audio needs. The microphones feature a user-friendly interface with frequency and battery level indicators, ensuring seamless operation.