Experience Oral-B Pro Series 1 From The #1 Brand Used By Dentists Worldwide. The Series 1 Electric Toothbrush Helps You Brush Like Your Dentist Recommends For 2 Minutes With The Professional Timer And It Notifies You Every 30 Seconds To Change The Area Your Are Brushing. While You Are Just Moving The Brush Around Your Mouth, Oral-B'S Unique Round Head Does All The Rest. It Removes Up To 100% More Plaque Than A Standard Manual Toothbrush For Healthier Gums, And It Starts Making Your Smile Whiter As Of The First Day Of Brushing By Removing Surface Stains. Features: Remove Up To 100% More Plaque Along The Gumline (Vs. A Manual Toothbrush), Whilst Protecting Gums With Our Dentist-Inspired Round Brush Head Technology Protect Your Gums With The Sensi Cleaning Mode And Gum Pressure Control That Automatically Stops Brush Pulsations When Brushing Too Hard Maximise Cleaning Performance With 3 Easy-To-Use Cleaning Modes + Handle-Integrated Quadrant Timer That Alerts You Every 30 Seconds To Change