Megasmile Sonic Black Whitening Sonic ToothbrushYour teeth will be whiter thanks to a combination of activated carbon and sonic cleaning technology. Up to 45,000 pulses create hydroactive waves of fluid in the mouth, and the toothbrush removes the maximum of plaque from hard to reach areas of the mouth. Special toothbrush bristles containing activated carbon promise such a polishing effect that your teeth will be lighter and shinier after several cleanings.