This electric tooth cleaning tool vibrates up to 11,000 times a minute, which can thoroughly remove the dirt and debris on the tooth. Made of stainless steel and silicone material, this electric tooth whitener is comfortable and textured to use, making your cleaning more convenient. This electric tooth scaler can be charged with USB, which is portable, and the equipped USB charging cable makes your charge quicker. The tooth cleaning tool is IPX6 waterproof, which can be washed by water directly, safe and easy to use. There are designed with several gears for adjusting, the tooth cleaning set can meet your cleaning needs at home. This electric tooth whitening tool is equipped with a LED digital screen, the LED and silicone handle make your use more convenient, it works with smart memory function. Specification: Material: ABS, silicone, metal. Color: black. Size: 22.7*3.1*2.2cm. Battery: built-in 250mAh Li battery. Charging port: DC charging cable. Charging voltage: 5V/1A. Input power: 1.25W. Charging time: about 2h. Working time(high gear): 2.5h. Waterproof: IPX6. Vibration frequency: 11000 times/minute. Working temperature: 0~40. Note: Due to the light and screen difference, the items color may be slightly different from the pictures. Please allow a slight deviation for the measurement data and make sure you do not mind before ordering. Package included: 1x host 1x replacement head 1x dirt removing tool 1x mirror 1x charging cable 1x introduction