What's Required? - Nothing! This product works out of the box with the free ‘Philips Hue Bluetooth’ app. Simply plug in your new Hue Go and connect to the Bluetooth app for in room smart lighting control! Multi-Room Control - Control up to three Rooms or a Zone with each individual button of the Tap dial switch - Turn the dial to dim and brighten the lights. Easy Installation - Mount it to the wall, place it on a magnetic surface, or use it as a remote control. Accessorise your smart Philips Hue system - with the Hue Tap Dial switch you can enjoy flexible and individual light control Convenient control: turn the switch slowly to adjust precise lighting levels in smaller steps. Turn the switch faster to quickly brighten or dim the room.