4-channel mini radio handheld transmitter with favorite button for controlling up to four drives/receivers. Can be used as a key chain. Includes three colored favorite button clips Radio frequency: 433.42 MHz Radio range: 30 m Power supply: 3V CR2430 battery Dimensions: 59 x 35 x 14 mm (HxWxD) Protection class: IP40 Operating temperature: 20°C to +70°C
