SEAGO SG540 Electric Toothbrush Ultrasonic Cleaning Sonic vibration as a lot as 42,000 strokes in protecting with minute ,remove as much as 99% extra plaque than a daily guide toothbrush. New improve of the motor, less noise, adjustable vibration,more happy to use. 5 Personalized Modes *White: Recommended to take away floor stains. *Clean: Standard day to day cleansing mode for day to day use. *Senitive: Recommended for these with gum recessions, braces, sensitive gums and sensitive teeth. *Massage: Great mode for people with sensitive gums *Polish: Recommended to extend shine on teeth, this mode can assist eradicate stains and shine your teeth. USB Rechargeable Compatible with any adaptor (not included) with USB port 2 Hour&;s Charging = 30 Days Easy Charging 2 minute auto-timer guarantees dentist commended brushing time. 30 seconds interval to make sure you thoroughly brush all four quadrants of your mouth.