The GUM Sonic Powered Toothbrush delivers a superior cleaning experience, effectively and gently cleaning below the gum line and between the teeth. Sonic vibrations move bristles from side to side, at the rate of 12,000 vibrations per minute, helping to dislodge more plaque with little effort. Its special head features soft, bi-level bristles with thin tips that reach below the gum line and between the teeth.This brush offers 50% more efficacy in cleaning between the teeth and reaches 45x deeper below the gum line for a healthier mouth. * *DOF-0011 *compared to a manual toothbrush. The GUM Sonic Toothbrush is battery-powered, requiring no recharging, making it easy to use and store. It's slim handle houses 1 X AAA battery. GUM Sonic replaceable heads are available separately. Dentists and Hygienists recommend heads be replaced every three months and The American Dental Association recommends that individuals make sure to brush for two minutes at least twice daily. With a sleek design, this convenient toothbrush helps you do more with less. It's stylish, slim, and portable, takes up very little space on your bathroom counter, and with its travel cap, it is easy to slip into your luggage for work trips or vacations. It's also crafted with a narrow, easy-to-grip handle for maximum maneuverability throughout the mouth, leaving your teeth and gums feeling clean and fresh.