U-SHAPED DESIGNThis automatic U-shaped toothbrush design is designed to fit the mouth and clean the surface and internal orientation of the teeth. The combination of patented photocatalytic whitening technology and patented U-shaped toothbrush can whiten teeth while removing dental stains. COVER ALL AREAS OF THE MOUTHThis toothbrush ultrasonic teeth conforms to the bite shape of the teeth and can reach a deeper area than a conventional toothbrush. By adapting the vibration of high frequency sound waves, it can quickly and thoroughly clean the surface and inside of the tooth in all directions. The cleaning electric toothbrush has the ability to provide adequate protection of dental health. AUTO MEMORY FUNCTIONThis children's toothbrush has convenient touch, one-button operation , four speed selections, powerful brushing, comfortable brushing, high frequency massage, teeth whitening. intelligent memory of user habits, efficient and convenient. 3-in-1 function of brushing, massaging and teeth whitening. CONVENIENT AND SAFEUsing a 360-degree U-shaped electric toothbrush is a fantastic way to develop healthy teeth. brushing habits. U-shaped ultrasonic design allows you to free your hands when brushing your teeth and improve your life efficiency. This ultrasonic electric toothbrush adopts IPX7 waterproof seal design, convenient and durable in use, safe to clean.