The portable, easy-to-use U4 system features road-worthy components housed in tough molded-plastic and cast-metal chassis built to handle the rigors of touring and designed to work with a huge variety of audio gear. The components are powered by internal non-replaceable batteries that offer 5 hours of operating time and are recharged via USB ports.
The transmitter works with basically any mixer or other device that has an available balanced XLR or unbalanced 1/4″ output jack. Just plug the transmitter in, and it will broadcast the incoming audio to any of its six selectable 2.4 GHz channels. Simply set the bodypack receivers to the same channel and you’re good to go. The system provides a 90′ line-of-sight transmission range and a 5 ms latency, low enough for musical applications.