1. U-shaped bracelets: U-shaped toothbrush, according to the shape of the human mouth, you can automatically brush your teeth by gently pressing them into your mouth. Soft food grade silicone material, it does not harm your gums, care teeth. 2. Wireless charging: the charging time is less than 90 minutes. After charging, it can be used for more than a week. This saves energy and protects the environment. Unlike other types of toothbrushes, users must not only carry the heavy charging station but also easily lose it. 3. Deep cleaning: powerful blue light sound cleaning, deep cleaning, removal of plaque and stains. Four gears are optional, powerful teeth brushing, comfortable teeth brushing, high frequency massage, teeth whitening, meet your different requirements. 4. IPX7 waterproof: the whole body is waterproof. Enjoy cleaning even in the shower easily and safely. This toothbrush is designed for adults to help them with healthy cleaning. 5. Four toothed wheels are optional: powerful brushing, comfortable brushing, high frequency massage, teeth whitening. Blue light protects gums, whitens and cleans teeth.