Want cleaner, whiter teeth? The FOREO ISSA Hybrid Rechargeable Electric Toothbrush with Silicone and PBT Polymer Bristles, Cool Black is an innovative tool that removes buildup, plaque and stains. Lightweight and functional, it provides 183 high-intensity pulsations per second to gently and safely clean teeth and gums. This innovative and modern toothbrush is also dependable. Each one-hour charge provides approximately 365 uses.