BT COOL Tooth Whitening system
LED based teeth whitening system (alternative to laser or plasma lamps) Bt Cool is a set of 12 high-power diode lamps. It can whitening teeth by 8-10 shades in 30 minutes during one treatment. The emitted light is cool, safe and doesn't cause pain. With proper diet, effects remain for a long time. The Bt Cool is safe and simple to use. Both arches are whitened at the same time.