led world 2.4G Wireless System DMX512 DMX Dfi DJ Receiver Transmitter Lighting Controller,8x Receiver +1x Transmitter 126 channels automatically jumping frequency 7 groups ID code settable, user can use 7 groups individual wireless system without any interference with each other in the same place. Input voltage: 5VDC 500mA MIN Communication distance: 700M Signal port: 3 pin male plug (for transmitter) & female plug (for receiver)