Built-in Rechargeable Battery and LED Light:The tooth polisher built in rechargeable battery with a Type-C interface, allows for convenient power options, including charging heads, power banks, and laptops. 2-3 hours for a full charge and can be used more than 10 times. In addition, an LED light is installed at the front of the polishing head, providing ample lighting during cleaning and polishing, allowing clear visualization of the teeth. This allows for better processing of details, ensuring ease of use and precision. IPX6 Waterproof and Portable:The tooth whitening kit built with an IPX6 waterproof rating, our tooth polisher is designed for easy cleaning and maintenance. It can withstand water splashes and quick rinses, Can be used in a humid environment or even in shower. After use, you can rinse it with water to be more hygienic.but we recommend avoiding prolonged soaking.Its lightweight and compact design makes it easy to carry and use anytime, anywhere, and facilitates tooth care. It can also be placed in a laundry bag and take travel or business. Effective Cleaning and Whitening:The tooth polishing device effectively removes exogenous stains of the teeth by rotating grinding, such as beverage pigmentation, smoke stains or food residues. At the same time, it has polishing, making the surface of the teeth more smooth and shiny, and at the same time, it slows down the stains to re -adhesive to achieve the best cleaning effect. It is a beautiful gift for family and friends. White teeth and confident smiles can leave a good first impression in interpersonal communication and business negotiations. Powerful Motor and 5 Speed Modes:The tooth polishing kit increase motor speed powerful 2200 RPM motor that effectively removes plaque, tartar, and stains. It offers 5 adjustable speed modes Soft, Normal, Middle, Strong, and Powerful,You can choose the appropriate speed mode based on tooth sensitivity and stain severity.It is recommended to gradually adjust from the soft mode to the desired intensity.Ensure teeth cleaning and whitening while comfortable use protecting your teeth. Note: After using a small wrench fixed center axis, just rotate the brush head with your hand to install or disassemble the brush head. Please do not rotate the small wrench.