Donner 1PCS DMX512 DMX Dfi DJ 2.4G Wireless Receiver Tricolor LED Indicators with Adapter With Light Dome, 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.This one is not rechargeable