The iO 2 electric toothbrush combines gentle micro-vibrations with a unique dentist-inspired round brush head for a purifying feel of a professional clean. Replace your Oral-B iO toothbrush head every 3 months for the best results.100% cleaner teeth than a regular manual toothbrush with oral-bu0027s io technology: tough on plaque, gentle on gums Designed for an easy switch to electric brushes with only 1 touch button, quiet sound, and long-lasting battery Protect your gums with the automatic gum pressure sensor that slows down speed and signals red when you brush too hardEasily choose your perfect clean with 3 quiet intensity levels: extra-gentle, gentle, daily clean Brush for dentist-recommended time with 2-min brush timer that alerts you every 30 seconds to change your brushing zone Benefit from a long-lasting battery with low-charge indicatorOral-B round brush heads reach where rectangular manual brushes donu0027t. Experience a better clean from Oral-B, the #1 brand most used by dentists worldwideSwitch now to Oral-B iO for your perfect clean