Unique U-Shape: Patented improved version U-shaped brush head, 760 transparent bristles, 6.5 cm x 6.5 cm. The silicone bristles are 40 percent harder and 25 percent harder. With the original V-shaped cleaning path, it reaches deep areas and provides thorough cleaning.IPX7 Waterproof + USB Wireless Charging: The toothbrush base cannot touch water; wireless charging and portable design, charges in 3 hours for a lifetime of 1 week. Low battery reminder. Safe, fast, and easy, automatic shutdown after full charge, compatible with any power source. Electric toothbrush convenient for home or travel.LED Indicator: Blue LED light integrated into the electric toothbrush. Customers can purchase a bleaching agent to whiten their teeth. .Multifunctional Mode: Our automatic toothbrush is your professional daily dentist, helping to maintain the health of gums and teeth with different operating modes as follows: 1. Strong mode for powerful brushing; 2. Medium mode for comfortable brushing; 3. Massage mode for massaging gums; 4. Whitening mode for whitening teeth. .How to Use: - Using the toothbrush is very simple, just press and hold the button for 3 seconds, the blue light will automatically turn on, and the sonic motor starts working immediately. You can change the mode by pressing the button. Press and hold the button; made of food-grade silicone material (FDA/IPX7/FCC/CE/ROSH).