3 pieces 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 thin, light and sturdy in design with a long battery life, typically two years.The Slimline 433Mhz two-channel key fob can provide individual remote control of two 433Mhz receivers, so you can open a garage door with one button and an electric gate with the other.Compatible with the following 433Mhz models: TOP432M, TOP432S, TOP432EE, TOP432NA, SA.Supplied with two CR2016 lithium batteries already installed and programming instructions.Dimensions: 69 x 12 x 32 mm.Technical specifications: Number of channels: 2 Frequency: 433.92 MHz Code type: fixed Range: 50 - 150 m Power supply: 2 lithium batteries 3 V CR2016 Working temperature: -20 C and 55 C Dimensions: 68 x 32 x13 mm Weight: 16 g x 32 x 13 mm Weight: 16 g Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.