5 Adjustable Modes: With 5 cleaning levelssoft,confort,standard,strong,super strong).The working mode can be freely selected according to the tooth sensitivity or the degree of stains. 100% Safe: This plaque remover automatically stops working when it touches soft gums. The non-slip silicone handle and LED light ensure safe use, and the included oral mirror provides a clear view. Multiple Alternative Heads: Comes with 2 kinds of cleaner heads. small wrench. And detailed usage instructions to help you use it better. Product Name: 5-speed True Ultrasonic Scaler Material: ABS+PC Working frequency: 37KHZ+/-3KHZ Rated power: 0.8W Battery capacity: 500mAh (14500) Charging time: about 2.5 hours Continuous working time: about 2 hours Service life: 8000H Power supply mode: Micro-usb charging Charging voltage: DC5.OV Rated current: 0.15A Working temperature: 0-40 Waterproof grade: IPX7 Host size/weight: 20*2.4cm, 80g Luxurious Set Packaging Dimensions/Weight: 19x7.8x3.7cm, 250g Standard package list: host*1, pointed elbow*1, flat elbow*1, open-end wrench*1, stainless steel dental tools x3, charging cable*1, manual*1, color box*1