Model DDR2 Quantity 1 Piece Color OthersWhite + Black Material PCB English Manual / Spec Yes Download Link Connection instruction file Other Features Relay control power off the wireless remote control to achieve the operation of electrical appliances. Working voltage: DC 12V; Working frequency: 315MHz; Contact capacity: -105dB; Working temp: -40~80 centigrade; Working frequency: 315M; Remote control rang: 100 meters (open spaces) depends on different space generally 10%~50% Certification CCC Packing List 1 x Remote control switch 1 x Remote control