iO Series 4 Rechargeable Toothbrush - BenefitsOral-B: Trust the brush Dentists use the most worldwideThis is real time personalized coaching, the accompanying App shows your daily brushing report4 Smart Modes for personalized brushing: Daily Clean, Whiten, Sensitive, and Super SensitiveRound head and gentle micro-vibrationsPressure sensor indicates optimal cleaning pressure and warns of over pressureIncludes a 2 minute timer to ensure a complete cleanIncludesOral-B iO Series 4 Rechargeable ToothbrushUltimate Clean Replacement Brush Head (1 ct)Travel CaseCharger - iO Series 4 Rechargeable Toothbrush