Keep your teeth healthy with this Oral-B iO3 Matt Black and Ice Blue Electric Toothbrush Duo. The electric toothbrush features the best technology, combining a dentist-inspired round brush head with micro-vibrating bristles for a professional purifying clean feel at home. The Smart Pressure Sensor helps prevent you from brushing either too hard or too softly to better protect your gums. Gum Guard alerts you to time spent brushing with too much pressure. Replace your Oral-B iO toothbrush head every 3 months for the best results. Personalise your brushing by choosing among 3 Cleaning modes. Benefit from a long-lasting charge with the Lithium-ion battery. The iO 3 electric toothbrush features Oral-B s best technology combining a dentist-inspired round brush head with micro-vibrating bristles for a professional purifying clean feel at home. The Smart Pressure Sensor helps prevent you from brushing either too hard or too softly to better protect your gums and alerts you to time spent brushing with too much pressure. Replace your Oral-B iO toothbrush head every 3 months for the best results.