With the devolo Key-Fob Switch your smart home will be more versatile than ever before. Switch your device groups on or off at the touch of a button or transfer your entire house to night mode - the devolo Key-Fob Switch makes it possible! It’s as compact and lightweight as a regular car key and is completely individual and freely programmable. Conveniently available on your key ring, a button can be activated when you leave the house and your smart home automatically goes to power save and alarm mode. The highlight is that this even works up to 100 metres (328 ft.) away!