The byron home easy remote control 2g single switch can be installed on any flat surface and allows you to remotely operate any home easy smarthome receiver with 2 channels for switching individual onoff or group onoff no wiring necessary wireless signal goes through doors windows walls and ceilings with a 30 metre range compatible with all devices of the home easy and smartwares smarthome series specification battery 3v dc type cr2032 included frequency 43392mhz