Specifications: Operating frequency: 433 [433.92) MHz Rated voltage: DC 12V Battery: 12V 27A [included) Size: 54 x 29 x 14 mm Weight: 28 g Working current: 10mA Radiated power: 10mw Transmission distance: 50mw. : 4 x remote control key fobs 1 x manual Note; only works for 433MHz, the transmission distance is 50-100m [open space), giving you a new experience of remote control and much convenience in your daily life. 1. Garage door opener, clone and duplicate your existing remote controls for cars, car sunroofs, garage doors, gate doors, heating systems, home automation e.g. 2. Popular model, new design with cover and ABCD four buttons can copy four respectively four buttons different types of chips, that is, one remote control can control four different types of facilities. 3. Durable and the color will never fade, water plating ensures the endora, high copy accuracy and high copy efficiency, duplicate your existing remote control if you lost it. 4.Ultra small error to copy data code and copy oscillation resistance. Integrity is strong. But you must note that it cannot copy rolling code