The U Shaped Ultrasonic Electric Toothbrush features fully automatic toothbrushing that is innovative and easy to use. While providing deep cleaning and whitening of the teeth, it leaves your hands completely free and saves a lot of time. U Shaped Bristle: Mouthpiece design provides versatile deep cleaning in your mouth. The U Shaped Ultrasonic Electric Toothbrush fits the human mouth perfectly, with a vibration speed of 48000 rpm, which can clean the teeth without dead corners. Nano Blue Light: USB charging provides hands-free brushing experience, while Nano Blue Light and Ultrasonic Technology effectively removes tooth stains, plaque and bacteria in a short time, making teeth healthier and whiter. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.