Features: brand new and high quality The sonic tooth cleaner can effectively separate dental plaque, calculus and stains, easily remove hard tartar on the teeth, and prevent gum disease. With intelligent memory function, the last shutdown mode is automatically selected when it is turned on. 5 levels of frequency adjustable, remove stubborn tartar, tartar and tooth stains. Automatically cut off power after fully charged, and automatically protects energy. Ultrasonic technology, with a high-intensity frequency of 30,000 times per minute, can effectively crush stubborn dental calculus and reduce the damage to enamel and gums caused by manual dental tools. Safe and fast USB charging method. It can be used for about 200 times on a single charge, so you don’for t have to worry about power failure when you travel. IPX7 waterproof adfer to clean and use. The body is deeply waterproof free to wash, safe and woeey-free. Specifications: Material: ABS Weight: 144g Size: 19.5x10.7x3cm/7.68x4.21x1.18inch Color: Blue/White Charging Port: USB Working Voltage: 5V Working Device: 5 Gears Waterproof Rating: IPX7 Battery Capacity: 800 mah Package Includes: 1x Manual 1x Host 1x USB Charging Dock 1x Toothbrush for Head 2x Cleaning Heads 1x Dental Mirror note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.