The Oral-B iO 7 Series Rechargeable Toothbrush combines powerful, but gentle micro-vibrations with Oral-B's unique dentist-inspired round brush head design for a professional clean feeling every day. The Smart Pressure Sensor helps to keep you from brushing too hard to protect your gums and enamel. AI Recognition using an interactive display helps guide you to your best clean for all areas of the mouth. A 2-minute quadrant timer comes built-in that pulsates every 30 seconds, ensuring a complete clean. The frictionless, smooth magnetic drive system transfers energy to the bristle tips for a clean that wows. Includes 1 Power Brush Handle 1 iO Gentle Care White Brush Head 1 Magnetic Charger 1 Brush Head Holder 1 Travel Case Usage Brush your teeth at least twice a day. Do not use on children under age 3. Replace brush (head) every 3 months or sooner if brush head becomes worn.