Unique U Shape: Patented improved version U-shaped brush head with 760 transparent bristles, 6.5 cm x 6.5 cm (2.55 inch). The silicone bristles gain 40% and the hardness increases by 25%. With the original V-shaped cleaning path, you can reach the deep area and have a thorough cleaning. . Wireless charging IPX7 waterproof + USB: The base of the toothbrush can't touch the water wireless charging and portable design, charges 3 hours to 1 week lifetime charging. Low battery reminder. Safe, quick and easy, auto power off when fully charged, compatible with any power source. Electric toothbrush is convenient at home or when traveling. . LED display: - Blue LED light built into electric toothbrush Customers can buy whitening gel to whiten teeth. . Multifunctional mode: Our automatic toothbrush is your professional daily dentist to help promote gum and teeth health with different modes of operation as follows:1. Powerful mode for powerful teeth brushing 2. Medium mode for comfortable brushing 3. Massage mode for gum massage 4. Whitening mode for teeth whitening. . Application: - Using the toothbrush is very simple, just press the button and hold it for 3 seconds, the blue light will turn on automatically and the sonic motor will start working immediately. You can change the mode by pressing the button. Press and hold the button use a food grade silicone (FDA/IPX7/FCC/CE/ROSH) .