New Upgrade Portable Electric Coffee Grinder TYPE-C USB Charge Profession Ceramic Grinding Core Coffee Beans GrinderOverview: 1. Infinitely adjust the thickness, the finest can grind 30 mesh coffee powder (>90%). 2. The bean bin and powder bin can be washed in the dishwasher. 3. The blue light works, and the red light flashes to remind charging. 4. Automatically stop without bean grinding 5 Charge for 3 hours. Work for 1 week, grind 3 times a day, once 25G coffee beans of medium thickness 6 USB TYPE C wire charging, universal. 7 Transparent working chamber, clear