Tello smart toothbrushes are designed with your smile in mind. With powerful yet gentle vibrations and an ergonomic design, you'll keep your teeth cleaner than ever. • Next generation toothbrush with Super Sonic technology • Aluminum alloy body with ceramic coating, very quiet (less than 50 dB) • Very light and comfortable with a weight of 88 grams • The maximum vibration speed of the brush head is 45,000 rpm • An impressive 45 days of battery life • Fast charging function - only 3 hours • Smart reminder to change the cleaning area every 30 seconds • Support 3 cleaning modes