Overview Sonic Technology: Utilizes ultrasonic vibration for effective plaque removal and deep cleaning. U-Shaped Design: Ergonomically fits all teeth simultaneously for efficient cleaning. Soft Silicone Bristles: Gentle on gums, suitable for sensitive users. Rechargeable Battery: Offers over 15 days of usage per charge with USB or dock charging options. Automatic Timer: Ensures recommended brushing duration for optimal oral hygiene. Waterproof: Full body washable design for easy cleaning and maintenance. Multiple Modes: Three vibration settings to customize brushing intensity. Specifications Product Dimensions: 16*15*6.5 cm Weight: 251 g (USB charging version), 263 g (dock charging version) Motor Type: Magnetic levitation ultrasonic motor Noise Level: Below 36 dB Motor Speed: 20,000-29,999 RPM Battery Capacity: 501-800 mAh (built-in lithium battery) Charging Methods: USB direct charging or dock charging (for upgraded versions) Brush Head Material: Medical-grade silicone Shell Material: Silicone Functions: Sterilization, self-cleaning, integrated flushing Colors: White, Black, Pink, Blue (standard); Powder, Blue, Green, White (upgraded dock charging versions) Packing List U-shaped electric toothbrush *1 Charging cable *1 (USB type for standard versions) Charging dock *1 (for upgraded versions only)