Donner 8 Piece Dmx512 Dmx Dfi Dj 2.4G Wireless 6 Receiver & 2 Transmitter Lighting Control Metal shell.Metal shell.7 Groups ID code settable, user can use 7 groups individual wireless net without any interfere No time delay when signal data is transmitting, signal data is real time and reliably This product adopts a 2.4G ism frequency section. High effective GFSK modulate, communication design 126 Channels jumping frequency automatically, high anti-jamming ability Dmx512 wireless receiver transmits standard dmx514 protocol data (generated by console) by wireless way