Transmitting frequency:315/433MHZ (Selectable)pls leave us your choice，or we willsend you 315! Working voltage:DC12V (27A/12V battery x1， Included) Key:2 KeysEmission Distance:20-50m (Open area)Encoding type:fixed code(2260，2262，2264)Oscillation resistance:4.7MSize:50*40*13mmColor:BlackCase material:PlasticQuantity:1PCNote:This remote control is empty code， you need to set the code by yourself. If you do not know how to set the code， please do not buy itApplication range:Garage door， entrance guard， the open and close of the car truck， the modifications of Wireless video and the doorbell，Light /lamp wireless remote control， the wireless remote control of the Home appliances switch， windows， Electric Control Lock etc 1 x Wireless Remote Control