Feature:1. Superior Material: The accurate grinding machine is made of acrylic material, which is healthy and durable.2. Comfortable Bottle Body: Our grinder adopts curved design, which is comfortable to hold and easy to grind.3. Simple Operation: Just press a button, you can operate with one hand! Just touch the button with one hand to enjoy.4. Powerful Function: Our stainless steel grinder is large enough to grind several times at a time, immediately grind and use, and the taste is better.5. Portable and Compact: Easy to carry, easy to open and close, fine grinding, suitable for office and home use.How to Use:1. Press the button to start and grind. The indicator light is blue when it is working.2. After all the coffee beans are ground, the grinder automatically stops working, press the button again to stop grinding.3. The opening at the top is the USB charging port. The red light is on when charging, the blue light is on when fully charged4. Rotate the top host clockwise to open the coffee bean funnel.5. Put the coffee beans in the middle. In order to ensure normal grinding, we recommend that 80% of the coffee beans are put into the coffee bean funnel.6. Rotate the