Feature: 1. Intelligent design, it will work normally when it touches the hard part of the tooth, but it will stop when it touches the soft part of the skin and gums. 2. Dual LED lights can help illuminate the entire mouth so that you can clean your teeth accurately without leaving dead ends. 3. It can effectively scan the deep blind area of the tooth, will not cause damage to the tooth, and is reliable in use. 4. A total of 5 gears: gentle mode, comfortable mode, strong mode, super mode and standard mode to meet your different needs. 5. Compact size, lightweight and portable, it is easy to carry and store, which can bring much convenience for you. Specification: Item Type: Tooth Cleaner Material: ABS + Stainless Steel Rated Voltage: 3.7V Battery Capacity: 600mAh (built-in) Instructions: 1. Make sure that the scalers is full charged before use. 2. Long press the on button to turn on, the light will enter the soft mode, and the negative ion and ultrasonic modes will be turned on at the same time, short press the on button again, the negative ion will not change, and the ultrasonic will enter the comfort mode. And so on, a total of five gears. It is recommended to start from the low gear and gradually increase the gear after adapting : OSoft mode, comfort mode, strong mode, superstrong mode, standard mode 3. Choose a suitable working tip and install it on the host clockwise with a small wrench. Do not use vigorous rotation to avoid damage to the interface. First open the appropriate gear and use the metal head to press the tooth to shake the calculus, and then use a little bit of force when operating on the calculus, try a few more times, because the calculus is more stubborn, be patient, and master the method It will be easier later. 4. Low voltage detection, when the battery voltage is lower than 3.2V, the flashing light will alarm. 5. After use, press and hold the power button to turn off the power. The device is preset with a 10-minute automatic shutdown function to prevent overheating. . Package List: 1 Set of Host3 x Teeth Cleaning Head1 x Wrench20 x Dental Floss1 x Mouth Mirror1 x USB Line1 x Manual