The Philips WiZ PORTABLE BUTTON Dimmer Controller lets you control your WiZ lights quickly and easily . With its help you can turn them on , off and dim . Works with all WiZ products. Short press the ON button to turn it on and long press to increase the brightness. Conversely, a short press of the OFF button will turn it off and a long press will decrease its brightness. Its advantage is a wide control range of up to 15 meters , and all you need to use it is a Wi-Fi connection . It is powered by 2 AAA batteries (LR03), which are not included in the package. Controllerit is made of white plastic . You can place it on the wall using the included 3m adhesive tape, or simply snap it onto a metal surface thanks to the built-in magnet . Its overall dimensions are 1.85 x 6.4 x 6.4 cm . With coverIP20is intended for indoor use . It is covered by a 2-year warranty .