3D cleaning: Rotary-rotating and pulsating movements remove up to 100% more plaque than conventional toothbrushes. Safe for teeth and gums. Included: Toothbrush, nozzle, charger, travel case. Movements: 20,000 per minute. Cleaning system: 3D. Timer: 2 minutes (4 x 30 seconds). Nozzle: CrossAction. Nozzle set: 1. Power supply: Fully charged battery lasts for 10 days (using 2 times a day for 2 minutes). Features: 3D cleaning, pressure sensor, 20,000 pulses per minute, 8,800 reverse movements per minute. Recommended: For the best cleaning quality, always keep the toothbrush on the charger plugged in. To extend battery life, fully discharge the battery every 6 months.