The Oral-B iO Series 3 electric toothbrush features revolutionary iO technology with micro-vibrating bristles and a dentist-inspired round brush head for a professional clean feeling at home. Its smart pressure sensor guides you to brush with optimal pressure, protecting your gums. The Oral-B iO Series 3 electric toothbrush utilizes Oral-B's best technology, combining micro-vibrating bristles with a dentist-inspired round brush head. This ensures a professional clean feeling at home. An intelligent pressure sensor helps you brush with the right pressure, neither too hard nor too gently, to better protect your gums. The smart pressure sensor indicates how long you have brushed with excessive pressure. Replace your Oral-B iO brush head every three months to maintain optimal cleaning performance. Oral-B's BEST CLEAN and REVOLUTIONARY iO technology provide a professional clean feeling and a gentle brushing experience. Oral-B's unique round brush head combines with gentle micro-vibrations. Your mouth feels fresh and clean, and you get 100% healthier gums in just one week compared to a regular manual toothbrush. THREE BRUSHING MODES ensure you always find the right function: daily clean, sensitive, whitening. The SMART PRESSURE SENSOR changes color to red, white, or green depending on whether you are brushing too hard, too lightly, or just right. Contents: 1 iO3 electric toothbrush, 1 brush head, 1 charger, 1 brush head holder.