Sonic vibration toothbrushClean your teeth better with the Silk'n SonicSmile SLKSS1PEUW Electric Toothbrush. Its sonic technology removes plaque and stains more effectively than a manual toothbrush, so you can enjoy healthier teeth and gums.5 cleaning modesPersonalise your brushing to suit your teeth - the SonicSmile offers 5 different modes, including Massage, Polish and White. There's also a Study setting that gently introduces you to electric brushing if you've never used a sonic toothbrush before.Interval timerThe SonicSmile has a 30-second interval timer, making it easy to clean one section of your mouth at a time. It also switches off automatically after 2 minutes, so you'll know when to stop using it.