Improve your oral health with the Bristl Light Therapy Electric Toothbrush. Using innovative light therapy technology, Bristl effectively kills bacteria, heals gums and whitens teeth. Featuring patent-pending dual light technology, the electric tooth comes with three light modes. The blue light kills oral bacteria and whitens teeth over time while the red light allows collagen secretion for anti-inflammation and regeneration. It also helps to prevent and treat gingivitis. The red and blue light emit simultaneously to produce a purple light that kills germs, fights cavities and strengthens gum tissues. The Bristl has a built-in two-minute timer, so you know when to stop brushing. Additionally, the rechargeable battery lasts up to three weeks if you brush your teeth three times a day.