Oral-B iO3 Electric Toothbrush with Magnetic Technology and Micro-Vibrations, Smart Pressure Sensor, 3 Modes, 1 Head, Black SMART PRESSURE SENSOR The smart pressure sensor signals red, white or green to warn you if you are brushing too hard, too slow or with the right pressure. MICRO-VIBRATIONS The Oral-B iO3 electric toothbrush has the best Oral-B technology for a professional cleaning sensation, efficiency and a gentle brushing experience. SMART FUNCTIONS TO MAXIMIZE YOUR BRUSHING The Oral-B iO3 electric toothbrush has 3 brushing modes to customize your brushing: Daily Clean, Sensitive and Whitening. The smart pressure sensor helps you not to brush too hard or too gently, to better protect your gums. The Gum Guard function warns you if you brush too long and too hard. SENSATIONAL Combines Oral-B's unique round brush head with gentle micro-vibrations for a fresh, clean mouth feel and healthier gums, compared to a regular manual toothbrush. CHANGE YOUR BRUSH HEAD REGULARLY Change your Oral-B iO brush head every 3 months for best results.