<p > 1. Fully charge the toothbrush. Please place the main unit vertically on the charging dock and when charging, the fuselage LED glittering, full of light. <\/p><p > 2. Apply toothpaste evenly on the U-shaped brush head. <\/p><p > 3. Put the brush head into your mouth, relax your bite on the brush head, and select the right frequency mode. <\/p><p > 4. Easily brush your teeth, and move your brush back and forth, left to right with your hands at the same time, brushes your teeth for a deeper clean. <\/p><p > If you find the mouth piece too small, move it further left and right, up and downfor a a greater reach. <\/p><p > Please do not charge in wet conditions, always dry the device before charging. <\/p><p> Fully automated high frequency ultrasonic cleaning, swing up and down to clean the teeth dirt. <\/p><p> U-shaped silicone brush head can wrap the teeth 360 \u00B0 for comprehensive cleaning of teeth, designed for adults. <\/p><p> Removable toothbrush head, recommended to wash with boiling water after a period of use. <\/p><p> Note: This toothbrush is used for micro cleaning and whitening, not to replace your daily brushing but to compliment for a deeper clean. <\/p><p > New generation toothbrush meet all teeth cleaning needs. It is recommended to use with foam toothpaste. <\/p><p > The electric toothbrush is fully washable, safe and convenient to use while taking a bath or shower. <\/p><p > With wireless charging base, USB port supports multi charging ways. 1 hours charge for at least 7 days use. <\/p><p > Automatically turns off after 45 seconds of each tooth brushing. Brush your teeth scientifically to protect your teeth. <\/p><h1 > How to use u shaped toothbrush? <\/h1><h3 > Ultrasonic Automatic Toothbrush <\/h3><h4 > 4 Brushing Modes <\/h4><h4 > IPX7 Waterproof <\/h4><h4 > Fast Charging <\/h4><h4 > 45 Seconds Smart Timer <\/h4>