The Oral-B iO 3 electric toothbrush utilises Oral-B technology and combines micro-vibrating bristles with a round brush head inspired by dentists. This gives you a professional cleaning experience in the comfort of your own home. The intelligent pressure sensor helps you to brush with the right pressure - not too hard and not too gentle - to better protect your gums. The intelligent pressure sensor informs you how long you have been brushing with excessive pressure. Change the Oral-B iO replacement brush every three months to maintain optimum cleaning performance. Oral-B cleaning and the revolutionary iO technology provide a professional cleaning feel and a gentle brushing experience. Oral-B's unique round brush head combines gentle micro-vibrations. Your mouth feels fresh and clean, and you achieve 100% healthier gums within a week compared to a traditional manual toothbrush. With three brushing modes: daily cleaning, gentle, whitening, you will always find the right mode. The intelligent pressure sensor changes colour to red, white or green depending on whether you are brushing too hard, too lightly or just right.