The subzero digital wireless xlr microphone system is ideal for performers presenters and musicians who need a hassle free wireless setup. Using a 5.8ghz frequency it provides a strong interference free connection for microphones and instruments with xlr connectors. With ultra low latency of just 5.6ms your sound remains in sync making it perfect for live performances. The transmitter and receiver both feature built in rechargeable batteries offering up to four hours of continuous use on a full charge. When its time to recharge the included usb cable gets you back up and running in under two hours. Designed for convenience the system includes four selectable channels to prevent interference from other wireless devices. Its compact xlr design makes setup quick and simple just plug in pair and start performing.