Product and product data and product information [High-quality material] U-shaped toothbrush head is made of food-grade silica gel, which is soft, non-toxic and non-toxic. Deprivation of Childrens RightsDesigned specifically for children. Each tooth is heard by the soft silicone bristles, which cleans the teeth to a certain extent. [3 working modes] There are 3 tooth cleaning modes, which can be handled conveniently through a single taste, and are aimed at specific tooth cleaning needs. [Ultrasonic technology] 24000 rpm ultrasonic cleaning teeth, clean the teeth without glue. [Dual light design] Combining the development of ultraviolet, red and blue light, everyone can identify different dental problems. [Convenient and safe design] IPX7 waterproof design, U-frnech channel and mouth angle settings are super easy to brush. [Powerful] One machine with multiple functions, timely removes stains, plaque, bacteria, and whitens teeth. Impact: 1) The normal operating temperature of production cost is 0-50C. 2) When charging the product, it is a product characteristic, please charge at room temperature. 3) When the product is not used for a long time, charge and discharge once every three months. 4) Place the product in the same shade and avoid direct sunlight. 5) After brushing your teeth, cover it with a damp cloth to keep the water and stagnant water consistent, and try to protect it even in the water. 6) The output power of this product is large, please do not work for a long time, generally no more than 10 minutes. 7) Please keep the case dry. Learn the steps: 3 modes: Gentle massage mode: Gentle cleansing to relieve gum needs. The best frequency is 63 times per minute. The best frequency is 63 times per minute. Specifications: Material: Silicone Voltage: DC5V Charging time: 2 hours Use time: about 7 days Charging indicator: blue light flashes, during charging, after fully charged Stop the battery cover waterproof: IPX7 Mode: 3 Color: Yellow Applicable age: 2-7 old USB cable length: 65 5 cm items Package includes: 10.9 x 5.1 x 4.4 cm Electronic toothbrush x 1 USB data cable x 1 User Manual x 1