Input voltage: 5VDC Work frequency section: 2.4GHz ISM band, 126 channels frequency section Max transmitting power rate: 20dBm Receiver sensitive: -94dBm port: RS485 or CPU series port AURTOperating manual: ID code and LED color corresponding correlation: 1:RED 2:GREEN 3:RED+GREEN = YELLOW 4:BLUE 5:RED+BLUE = PURPLE 6:GREEN+BLUE = CYAN 7:RED+GREED+BLUE = WHITE Press key 1 time to indicate ID setting, Press again to set IC, then ID value adding 1 each time by press.Working condition: LED constant light up: no DMX or wireless . Red LED flash: transmitting. Green LED flash: Receiving RF frequency------2. 400-2. 525 G, total 126 channels, it is searching automatically. ID Code-------"1-7" groups ID code, press "key" button for setting, it only can work under same ID code of transmitter and receiver.Establishing Communication: Power on DMX512 wireless received board and transmitted board. Press "key" button to set same ID value of transmitted board and received board, please use different ID value if you need use more than 1 group wireless net at same time in same place. The red LED flashes when transmitter transmits DMX data by no interfered frequency section, then receiver changes communicated frequency section. Green LED flash till received corrected same ID value, LED flash faster once DMX data faster. Communication was established correctly then.