Take your oral hygiene to the optimum level with Sonic EDGE. Offering more than 31,000 powerful strokes per minute, this electric toothbrush efficiently keeps your mouth healthy and clean. It has a 2-minute auto-timer to ensure healthy brushing, three modes for brushing intensity, and eight additional brush heads to help fight plaque and promote gum health. This rechargeable brush is waterproof, making it safe to use during showers. With regular brushing, Sonic EDGE provides up to 6-week battery life on a single charge.