iO Series 9 Rechargeable Electric Toothbrush - Features3D Teeth Tracking and AI Recognition use an interactive color display to help guide you to your best clean for all areas of the mouthA 2-minute quadrant timer comes built-in that pulsates every 30 seconds, ensuring a complete cleanBenefitsThe frictionless, smooth magnetic drive system transfers energy to the bristle tips for a clean that wowsReplace your Oral-B iO Series Replacement Brush Heads every 3 months for best resultsIncludesiO Ultimate Clean Replacement Brush Heads (4 ct)Power2 Go Charging Travel CaseiO Series 9 Black Onyx Electric Toothbrush - iO Series 9 Rechargeable Electric Toothbrush