About this item Sonic toothbrush technology-41,000 micro-brushes/minute sonic dynamic cleaning, gently pushing the liquid pulse between the teeth and the gum line, achieving excellent cleaning and removing plaque, significantly whitening teeth, and effectively improving oral health. Brushing mode-This sonic electric toothbrush has multiple modes. Customize your brushing mode according to your oral situation, so that your teeth can stay healthy and strong for a lifetime. Super waterproof-the toothbrush has an IPX7 waterproof rating, so it can be used safely in the shower, and it is very convenient for children and the whole family. Convenient to carry-this electric toothbrush is easy to use at home or during travel, and the USB charger can be carried with you during the journey. Long battery life-one charge can last 20 days of regular use. The rechargeable toothbrush is compatible with any device with a USB port, and will automatically power off after being fully charged.