The scientifically developed brush "Complete protection" is highly effective in removing plaque and protecting teeth and gums. The innovative brush "Complete protection" provides combined cleaning with its high-frequency movements with over 30% more efficiency than a regular toothbrush. It works with a battery size AAA, enough for about 3 months of use (3 times for 2 minutes a day). The new head replacement system is very practical and allows easy replacement. Dentists recommend replacing the heads every 3 months of use.