The Pursonic Sonic Toothbrush with UV Function with Bonus 12 Brush Heads is designed to promote oral health. It provides 31 000 ultra-powerful strokes per minute to remove plaque and bacteria. This Pursonic rechargeable sonic toothbrush has a 2-minute timer with 30-second alerts to promote better brushing habits. The UV sanitizing function with seven minutes sanitizing timer control uses a germicidal UV bulb to kill over 99.9 percent of bacteria.