The iO 10 electric toothbrush with the revolutionary iO Sense charging station provides personalized real-time feedback on where, when and how to brush – for an efficient and pleasant brushing experience. It combines gentle micro-vibrations with Oral-B's unique, round brush head to give you the feeling of professional teeth cleaning every day. The magnetic iO Sense charging station offers personalized live coaching so you know when and how to clean. 3D tooth tracking uses artificial intelligence to record brushing behavior outside, inside and on the chewing surface - for optimal cleaning. The interactive color display allows you to switch between cleaning programs and reminds you to change the brush head. The smart pressure regulator glows red when the pressure is too high, white when the pressure is too low, and green when the optimal pressure is applied. For best results, replace the brush head of your Oral-B iO toothbrush every 3 months.