The high-frequency toothbrush Niceboy ION Sonic utilises as many as 40,000 oscillations per minute to effectively care for your pearly-white smile Sonic technology for healthier and whiter teeth Three toothbrush heads with different hardness levels right in the packaging Lasts up to 40 days off of one charge Easy charging with the induction station Comfortable use Specially shaped toothbrush head for comprehensive care Smart timers for thorough, everyday cleaning   Operational hours: 40 days (calculated at 2 minutes per use and 2 times per day) Battery capacity: 800 mAh Time to charge: 8-10 hours Watertightness: IPX7 Voltage/Power: 3,7 V == 1,85 W Charging Wireless charging dock Output voltage: 5 V == 85 mA Operating hours: 40 days (calculated according to the operating condition of 2 minutes/washing and 2 times/day) Battery capacity: 800 mAh Charging time: 8-10 hours Waterproof IPX7 Package contents:     Niceboy ION Sonic toothbrush handle3x toothbrush head (1x soft, 1x medium, 1x hard)Wireless docking stationUSB-C charging cable