How to use: Instructions for use: 1. Press the machine power switch, light switch and suction switch are key control, light and wind can be used at the same time. 2. Polish the main switch, gently press it to start and press again to stop 3. Press + or - to adjust the grinding speed 4. The brightness of the LED light cannot be adjusted. Note: 3 functions can work simultaneously. Specification: Item Type: Dental Aspirator Material: ABS Power: 60W Air volume: 52.45 CFM (1.2 m³/min) Various applications: nail polish, tooth polish, jewelry polish, etc. List of packages: 1 x Vacuum Host 1 mains adapter 1 instruction 1 x polishing handle 6 x polishing head 6 x grinding head 1 x expansion tube