Warm Tips: All kinds of coffee cooking utensils need different grinding thickness. It is recommended that you understand your equipment and choose the appropriate scale. The number above the scale adjustment represents the thickness of the coffee powder No. 0 is the finest coffee powder, and No. 8 is the thickest coffee powder. Adjust the thickness of the coffee powder according to your preference or the used coffee appliance to the desired thickness number. Specification: Name: Electric Coffee Grinding Machine Type: Burr Grinders(Conical) Function: Dry Grinding Speed Gear: 8 Gears Voltage:110V/60Hz. Rated Power: 150W Smash speed: 150g / min Beans cartridge capacity: 250g Plug:US Plug. Material:Alloy(motor) and Plastic(base). Color:Red. Net Weight: 3kg Packing Size:250*145*370mm How To Use: 1. Adjust the scale to the desired number. 2. Turn on the power switch. 3. Place the coffee beans in the funnel. 4. Cover the funnel. 5. Turn off the power switch after use. Trouble Shoot: 1. Open the fuse holder (No. 14) and check if the fuse is burned and needs to be replaced. 2. The foreign body (stone or iron) inside the coffee bean causes Package Included: 1x Coffee Bean Grinder