Keep your teeth healthy at home. Can loosen different teeth and remove different types of stains. You don't need to charge it frequently or replace the battery. Made of high quality stainless steel. Additional oral mirrors can provide a clear field of vision. Product description: Material: Silicone, ABS, Metal Color: Black Charging interface: DC charging cable Battery: 20mAh polymer battery Charging voltage: 5V/1a Input power: 1.25W Output power: 0.75W Working voltage: 3.7V Charging time: 2 hours Use time (high Gear): 2.5 hours Vibration frequency: 11000 times/minute Working temperature: 0 ~ 40 Waterproof level: IPX6 Package contents: 1*Teeth cleaning device, 1*Replacement head, 1*Teeth cleaning tool, 1*Dental mirror, 1*Charging cable, 1*Professional manual Dental Care: Active ingredient removers can effectively remove tartar and teeth stains, gently free from the tooth to prevent gum disease. Using removers in the current dental care program will reduce the amount of bacteria in the oral cavity, making it healthier. Instantly whiten your teeth: With our teeth cleaning device you can polish and whiten your teeth in just a few minutes. Light whitening is perfect teeth whitening. With the help of scrapers, you can not only soften your teeth, but also clean your teeth space, perfect teeth polishing agent. Remove stubborn tartar: Healthy oral hygiene is essential. Bacteria in the mouth can cause tooth decay, oral gum problems for teeth falling off. Staying away from tartar is essential for healthy teeth. More Accessories: The software package includes 2 replacement heads to solve your accessories. The tip is suitable for cleaning the small spots in the gums, and the tip of the plane is used to clean the large tartar on the surface of the teeth. Note: This device is for adults only. Keep away from children to avoid injury.