Electric Toothbrush - sonic, 31000 strokes/min, 4 modes, bluetooth , timer, pressure sensor and battery indicator, spare heads: 2 piece(s), with mobile app The Philips Sonicare DiamondClean Smart, Black and White HX9912/18 Electric Toothbrush takes professional dental care from the dentist's chair and delivers it into the comfort of your home. It is simple to operate, and with 31000 strokes/min, it eliminates all dental plaque while leaving you with clean teeth and a dazzling smile. The fine brush head fibres effortlessly clean even difficult to reach places far more efficiently than a typical toothbrush. It also features a digital timer that signals when you've finished brushing for the full two minutes that dentists advise. Philips Sonicare DiamondClean Smart, Black and White HX9912/18 Electric Toothbrush Key Features Sonic toothbrush gives you the best results Cleaning programmes: 4 Battery status indicator 2 piece(s) of spare brush heads included...