Oral B iO2 Black Electric Toothbrush The Oral B iO 2 electric toothbrush combines gentle micro-vibrations with a unique, round brush head, inspired by dentists, for a professional cleaning feel. Change your Oral B iO brush head every 3 months for best results. Tough on plaque, gentle on gums • Designed for easy switching between brushing programs with just 1 touch button, low sound and long-lasting battery • Helps protect your gums with the automatic pressure sensor that reduces brushing speed and displays a red indicator when you brush too hard • Brush for the dentist-recommended time with the 2-minute timer that alerts you every 30 seconds to change quadrants • Benefit from long-lasting charging with the lithium-ion battery indicator. Oral B round brush heads reach where rectangular manual toothbrushes cannot. Experience a better clean from Oral B, the number 1 electric toothbrush brand used by dentists worldwide.