CAME's Top Series 433.92 MHz radio remote controls are the high quality control solution for residential and commercial gate automation systems.The unit comes with easy-to-program instructions in less than 30 seconds.It is easy to program from an existing remote control or from the command. They are slim, lightweight and rugged in design with a long battery life, typically two years.The TOP-432EV Slimline 433Mhz two-channel keyfob can provide individual remote control of two CAME TOP series 433Mhz receivers, so you can open a garage door with one button and an electric gate with the other. Compatible with the following CAME 433Mhz models: TOP432M, TOP432S, TOP432EE, TOP432NA, SA.Supplied with two CR2016 lithium batteries already installed and programming instructions. Supplied with two CR2016 lithium batteries already installed and programming instructions.Dimensions: 69 x 12 x 32 mm. Power supply: 2 x 3V CR2016 lithium batteries