Features: Intelligent high-frequency vibration dental cleaner, with beautiful white teeth and a bright smile, can remove dental stones and clean teeth more thoroughly. The strong power starts from the "core", and the dental cleaner applies the principle of high-frequency vibration, with a frequency of up to 20000 times/min. Combined with a professional dental cleaning head, it can effectively remove stubborn dental stains and stones. The 3-speed mode can be switching on demanda to meet different cleaning needs, providing you with a comfortable and refreshing experience. 304 stainless steel material, with precise curvature that matching the root of the gums, making cleaning more convenient. Creative LED auxiliary light that allows dirt to escape without hiding, with its own strong LED light, illuminating every corner of the mouth and teeth, making it easy to see the specific location of dental stones and other problems, and more convenient and effective removal. The integrated waterproof machine body has a deep waterproof design, which allows for direct rinsing with cleaning water after use, making it safe, fast, and easy to clean, It can be held in one hand and is portable for travel. It is the size of a toothbrush and can be taken with you any time, making it compact and portable without taking up space. Specifications: Material: ABS Charging Mode: USB Charging Interfaces Battery Capacity: 300mAh Vibration Frequency: Approximately 20000 Times/Min Charging Duration: 1 Hour And 30 Minutes (Sustainable Use for 5 Hours) Working Mode: 3 Modes(Clean Mode, Normal Mode, and Soft Mode) Charging Working Voltage: 3.7~4.2V Maxs Rating Current: 130mA Waterproof Grade: IPX6 Storage Temperature: -10 Centigrades-40 Centigrades Size: Approx. 8.74x1.02x1.02inch(22.2x2.6x2.6cm) Package Includes: 1 Set Dental Calculus Remover note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.