QUICK GRINDINGThis electric coffee grinder can be used to quickly grind coffee beans, allowing you to enjoy a cup of fragrant coffee in your free time or busy work.THICKNESS FREE CONTROLThe powder is even and fine, and the thickness can be adjusted steplessly. The finest ground coffee powder can reach 30 meshes (>90%).CERAMIC GRINDING COREThe cone-shaped ceramic grinding core is not easy to generate heat, which reduces the loss of flavor and the off-flavors produced by extraction.AUTO STOPOne key to open and close, automatically stop grinding when no beans, simple and convenient operation, allowing you to easily grind coffee beans.PORTABLE SIZEThe coffee grinder has a compact size. It is USB charging, can be used for 1 week after charging. Very convenient for you to carry when you go traveling and enjoy aromatic coffee anytime, anywhere.Specifications:Name: Cordless Electric Coffee GrinderMaterial: Plastic ABS, copper motor, PCColor: black/whiteSize: 18*7.5*7.5CMWeight: 0.4KGRated voltage: 3.7VWattage: 13WBattery specifications: 3.7V, 1250mAhMaximum charging current: 1APowder tank capacity: 120MLUse environment temperature: -10~40Relative humidity: 10%~95%Charging time: 3-4 hoursGrinding weight: 25g for coffee beansGrinding times: 20 grams of coffee beans are ground into medium particles (100 mesh): 15-18 timesPacking List:1* Electric Coffee Grinder1* Brush1* USB TYPE-C Charging Cable1* English User Manual