The CHAUVET DJ D-Fi USB 2 Wireless USB Transceiver provides you with instant wireless communication between your electronic musical instruments. With no dipswitches to set, you can quickly and easily select channels that are compatible with D-Fi XLR devices. It transfers DMX, ILS and master/slave signals between similar fixtures, eliminating the need for DMX cables. Simply plug it into your USB and ILS-compatible gear and it works without an external power supply. Fully FCC and RED compliant, the D-Fi USB 2 gives you freedom of movement up to 165' away from the transmitter.