Black Electric Toothbrush with Travel Case The iO3 electric toothbrush features advanced technology, combining a dentist-inspired round brush head with micro-vibrating bristles for a professional clean feeling at home. The smart pressure sensor prevents brushing too hard or too soft, protecting your gums and ensuring optimal cleaning. The sensor alerts you if you're applying too much pressure. Replace the brush heads every three months for best results. - Achieve healthier gums in just one week, removing 100% more plaque compared to a manual toothbrush with the most advanced technology - Protect your gums with the pressure sensor, which signals if you're using the perfect pressure for effective and safe cleaning - Maximize your cleaning with the timer that notifies you when you've brushed for the dentist-recommended 2 minutes and alerts you when it's time to change the brush head - Customize your brushing by choosing from three cleaning modes: Daily Clean, Soft, Whitening - The round brush heads reach areas that rectangular manual toothbrushes can't, providing the best cleaning experience - Benefit from long-lasting power with the lithium-ion battery