With the key fob switch you always have your smart home on hand whether you want to switch your device groups on or off at the touch of a button or transfer your entire house to night mode ndash the develop key fob switch makes it possible the devolo home control key fob switch ensures you have full control over your smart home at all times t he smart home for your pocket is always at hand to control heating lighting and any additional function at the touch of a button the smart home