1. 10 levels for your chooses,to adjust the fineness of coffee powder. 2. The hopper with cover, to prevent the coffee bean from getting wet and jumping out. 3. Coffee bean guard,Control the amount of coffee beans. 4. Stainless steel grinder blade,hardened design, grind coffee faster and better. 5. Grinding speed of 2700rpm, can make very fine coffee powder. 6. Creative design, tap the cup to pour coffee powder. 7. Matching powder container with filter, the thickness of the coffee powder is more uniform. 8. Safety device to protect the machine when it is overheated. 9. The micro-switch can control the powder output better.