Our Toothbrush is comfortable and fully automated for an ultrasonic cleaning with variable vibrations per minute. HOW TO USE: After full charge, install U-shaped brush head. Shake the liquid toothpaste, then press out the foam and evenly apply it to the U-shaped brush head. Put the brush head into your mouth, relax your bite on the U-shaped brush head, and select the right frequency mode. 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. After brushing your teeth, use wet cloth to clean up the water and stagnation of the fuselage. 360° INTELLIGENT CLEAN: Unique U-shaped brush head, in line with the shape of the teeth bite, high-frequency sound wave vibration, can quickly and fully clean the surface and inside of the teeth at the same time, eliminates 99.99% of bacteria. FEATURES: Food grade silicone brush head, non allergic, safer to use. 360° automatic cleaning. 30 seconds quickly whitens & cleans, 3 times deeper cleaning than normal tooth brushing for micro clean. World's First BASS Qualified & High - tech Automatic Whitening Toothbrush 45-70 radian. High-grade battery, 30 minutes of wireless charging for 10 days of brushing. SPECIFICATION: Material: Food grade Silicone; ABS Color: White Product size: 60*25*110mm Package weight: 290g / 10.2oz Rated voltage: DC3.7V Battery life: 1500MA Input voltage: DC5V Vibration power: 6W 1 YEAR WARRANTY AND 90 DAYS, NO HASSLE RETURN.