-3 Smart Modes to personalize your brushing: Daily Clean, Whitening, Sensitive -Combines Oral-B’s iconic dentist-inspired round brush head with gentle micro-vibrations to remove harmful bacterial plaque -Smart Pressure Sensor signals red, white or green to alert you if you’re brushing too hard, too softly or with just the right pressure. -Smart Ring flashes a 360° ring of colors to celebrate completion of a dentist-recommended 2 minutes of brushing The Oral-B iO Series 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. Replace your Oral-B iO Brush Head every 3 months for best results Germany