Simple, versatile and unobtrusive, the Philips Hue smart button controls Hue smart lighting with just a press of a finger. A single press accesses the recommended light settings for the time of day. Holding the button down raises and lowers light levels. The 32 x 32 x 14.5 mm white-on-white unit fits any interior. An internal magnet allows it to be mounted on a fridge or metal doorframe. Mini-mount accessories are used for mounting on non-metallic surfaces. The soft silicone of the button is pleasant to touch while its anti-dust and anti-dirt coating make it easy to keep clean.