Safe and high-quality: unique silicone toothbrush, strong antibacterial, safe and durable, brush head tactile hair encryption, cleanliness up to 99% Optimized body, smaller, increased frequency, longer battery life 10 days battery 400 mA, USB charging Waterproof function: deep waterproof, wash the whole body without fear of water source, don't worry about some danger when using it Quiet: The sonic motor is quiet and whispered The extended shaft allows the vibration to reach the end of the braces The new brushing method allows you to brush without using your hands Brushing your teeth in 360 degree is a real free hand Suitable for various tooth stains: For tooth staining caused by coffee, soy sauce, tea, cigarettes, etc , cold light whitening is the best It only takes 20 minutes to easily solve your troubles, so you can see excellent whitening effects Of course, if you use it for a long time, the teeth whitening effect will continue Lightweight and easy to carry: portable cold whitening, clean and safe, no infection, easy to use, lightweight, easy to move, convenient and fast Excellent dental health care products: exquisite packaging, efficient products, it is your best choice for visiting relatives and friends Recommendation: replace one brush head a month