Rechargeable (Magnetic Usb Charging). Small, Light And Perfectly Sized4 Hours Charge = 28 Days Brushing Time (2 Minutes X 2 Times A Day)2 Extra Replaceable Brush Heads Included. Flashing Disco Lights For A Fun Brushing Experience Deep Clean Bristle Technology. Sucker Base Feet - Stick On Any Surface. 2 Minute Quadrant Timer. 2 Power Modes. Waterproof