Important reminder: Buyers must read! ! ! This electric toothbrush is designed to intelligently swing the brush head up and down. It only needs to swing up and down when it touches the surface of the tooth. No need to swipe up and down manually. When you brush manually, the motor will automatically weaken or even stop swinging. Use the Tutorial Please follow the picture number above to read . ON/OFF Button (Click To pre Power On, pre Enter Shutdown for a long time.) . Page Switchover (Click this button to switch pages. There are three pages in total, three pages: ) . Adjust Button (This button is used to adjust the three modes of , the five vibration frequencies of and the three times of .) . Modes (clean, whitening, maage. Switch three modes via the button.) . Frequency (Vibration frequencies, 82,87,93,105,110Hz/s. The vibration frequency appropriate for your teeth is adjusted by means of a button . . Time (Brushing time adjustment, 100 seconds, 120 seconds, 180 seconds. The three time periods are set for brushing. The time adjustment switches through the button operation. When you have set up all the data, pre the button to enter the OK interface. Then pre the button to get to work. When the shutdown is complete, the next time you need to use it, you do not need to set it up again, the memory function chip should be built into the product. The next time you use it, pre the button directly on and pre the LCD screen directly into the memory mode of the previous time, and then pre again to directly into the previous memory mode, directly into the working state. A number of technology design, intelligent design, built-in memory function chip. Smart life, smart brushing. Lcd screens are designed with high-definition screens. The keys have a bumpy texture and easy operation. The way to operate is easy to understand. upper and lower swing design intelligent protection ofgums. smart chip, magnetic levitation provide strong power, scientifically care for dental health. Auto swing up and down . only need to move the toothbrush more labor-saving. Preure sensor chip.when the force is too strong,it will automatically weaken to protect the gums. Smart time brushing, so that every part of the tooth enjoy the same time cleaning, can be set to a height of up to 45 seconds per position. It's 180 seconds. Product bristles quality is preferred. The bristles are designed with round heads to better protect the gums of the teeth. High-quality materials are used for production. Built-in lithium battery 1200 mAh. Charging takes about 3 hours to complete. A single charge can take about 50 days to complete. Products for IPX7 waterproof products, acce to the relevant institutions of waterproof certificate, so that products can be cleaned in water treatment. All modes, frequencies, times. There are a total of 15 pattern designs. When you use the product has statistics of all your cumulative brushing time. The design is novel and the appearance has a sense of technology. The product's three colors are suitable for all adults. The texture is unique and strong.