Healthy teeth: This oral care toothbrush effectively helps prevent gum recession, promotes microcirculation in the gums, relieves gum problems and toothache, reduces tooth sensitivity, keeps breath fresh, whitens teeth, massages gums, and maintains healthy teeth and gums. Fully sealed design: This 360° U-shaped electric toothbrush has a fully sealed design with an IPX7 waterproof rating, allowing for safe use in the bathroom. U-shaped brush head: This portable U-shaped electric toothbrush features a U-shaped design that allows for 360-degree contact with gums and teeth. It perfectly adapts to the oral cavity from the inside out and deeply cleans between teeth. Soft silicone bristles: This smart toothbrush is made of food-grade silicone and has an IPX7 waterproof rating. The bristles are softer than traditional toothbrushes, which better protects your gums. You can trust this new product; long-term use will effectively whiten teeth! Easy to use: This electric silicone toothbrush is easy to use. First, squeeze some toothpaste onto the brush head, gently place your upper and lower teeth into the brush head's groove, then press the on/off button and move your teeth back and forth.