*250 meters wireless DMX transmission in open air enviroment. *Transmit 2 universes of DMX simultaneously (2X512=1024 channels). *Transmit and receive functions in one NetLink Transceiver through dip-switch selection. *Compatible to all DMX equipment. *9 different transmission frequency for selection via rotary switch. *Automatic frequency hopping when interfered without break of signals. *Plug & play, simple and easy. *Last scene hold. *External antenna. *Built-in universal 100~240V AC power supply. *Wireless DMX System diagram. *UL,CE approved