KEDSUM 4PCS DMX512 DMX Dfi DJ 2.4G Wireless 3 Receiver & 1 Transmitter Lighting Control No time delay during data transmission 7 groups ID code settable, user can use 7 groups individual wireless system without any interference with each other in the same place. Portable and easy to handle Tricolor LED displaying One transmitter can control many receivers 126 channels automatically jumping frequency, high anti-jamming ability to ensure working reliability.