This wireless transmitter / receiver can help you to get rid of countless wire. Features: DMX512 wireless receiver/transmitter transmits standard DMX512 protocol data (generated by console) by wireless way. No time delay when signal data is transmitting, signal data is in real time and reliable. This product adopts a 2.4G ISM frequency section. High effective GFSK modulate, communication design; 126 channels jumping frequency automatically, high anti-jamming ability, to ensure that works reliability. 7 groups ID code settable, user can use 7 groups individual wireless net without any interfere each other in the same place. (Tricolor LED displaying indicators) Specifications: Input voltage: DC 5v 500mA min Power: 0.2w/pcs 2.4G wireless DMX512 T/R Communication distance: 400 meters/ 1312.3ft (visible distance) Working frequency section: 2.4G ISM, 126 channels frequency section Rotation angle of antenna: 90 degree Max transmitting power rate: 20dBm Receive sensitivity: -94dBm DMX connector：3pin male and 3pin female Material: Iron & Zinc Item color: Silver Warranty: 1 year Length of antenna: 8.7cm/3.4in Item size of transmitter: 2 * 12cm/ 0.8 * 4.7in（D * H） Item size of receiver（one piece）: 2 * 8.5cm/ 0.8 * 3.3in (D * H) Item weight of transmitter: Approx.67g/2.4oz Item weight of receiver (one piece): 45g/ 1.6oz Package size: 16.9 * 16.5 * 6.3/6.7 * 6.5 * 2.5in（L * W * H） Package weight: 499g/17.6oz Notes： 1. This item is for indoor use only, non-waterproof. 2. Please do not rotate the antenna at random. Package list: 1 * DMX transmitter 3 * DMX receiver 4 * Power adapter 1 * Instruction