The iO 6 electric toothbrush features Oral-B’s best cleaning technology, combining gentle micro-vibrations with an exclusive round brush head inspired by dental tools for a professional cleaning sensation every day. Clinically tested technology. Download the Oral-B app to track brushing time and reach even the most difficult areas for complete cleaning. Syncs with the Apple Health app to monitor average brushing time daily. Replace the brush head every 3 months for optimal results.