This product is a wireless DMX Transmitter and Receiver designed to send and receive a DMX control signal wirelessly up to 1,000ft (line of sight). A minimum of two units are needed to operate, one is required to send the DMX signal (transmitter) and an unlimited amount of receivers can be paired to the transmitter within the wireless range. Sixteen group options allow for 16 different DMX signals to be wirelessly transmitted in one area. The wireless 2.4Ghz RF signal uses 126 channels decreasing interference and allowing reliable communication. Each unit has a XLR 3 type male/female connectors for the DMX input and output, a DMX decoder, or DMX fixture with built in driver, is then required to set the DMX address and operate your lighting. Each unit includes a 9VDC power adapter, a minimum of 2 units is required to send and receive a DMX signal.