Rechargeable Electric Toothbrush, 6 Optional Modes for Fast Charging, Ultrasonic with Built-in 2 Minute Timer and 4 Replacement Brush Heads, Black

X-3 Toothbrush uses advanced sonic technology, vibrating at a frequency of 42,000 strokes per minute, that pulses water between teeth, and its brush strokes break up plaque at more than 10X the efficiency of a Manual toothbrush. The DuPont Nylon bristles fit the shape of your teeth, making it easy to clean hard-to-reach areas.