For a pure cup of coffee, you need a coffee grinder to provide freshly ground coffee powder, you can enjoy the rich coffee aroma and better brewing taste. The utilization of electric mode: Step 1 Activate the grinding chamber Step 2 Pour the beans into the grinding chamber Step 3 Close the grinding chamber Step 4 Open the powder chamber and turn to adjust the grinding degree Step 5 Close the powder compartment, double click to start grinding Step 6 Open the powder compartment and check the ground coffee The utilization of manual mode: Step 1 Remove the motor head Step 2 Open the powder chamber and turn to adjust the grinding degree Step 3 Pour beans into the grinding chamber Step 4 Close the powder chamber , install the handle and turn clockwise to experience manual grinding Why choose our coffee grinders? Outdoor Portable The grinder has 1000mAh battery capacity, it is easy to do electric grinding without plugging in, and the small body can be easily put into a backpack without space. Manual & Electric Newly upgraded, with the click head electric grinding head and hand crank handle, manual and electric can be switched to meet your different grinding methods. Ten Star Burr Head Adopting the most advanced grinding technology, it saves us time and energy when grinding, which makes the grinding more even and tastes better. Double Click Start Adopting the wrong touch mistake system to better protect the machine, and automatically shut down the machine after the start of grinding. Grinding Speed The grinder adopts 10-star cutter head to greatly reduce the grinding time, 20g coffee beans medium particles only need 50-80 seconds. Low Decibel And High Speed Noise level of this coffee grinder just only 70DB, will not affect the daily life and office, 35000 revolutions per minute can be more efficient coffee grinding.