Introduction 1, USB rechargeable 2 adjustment corase to fine: 38 phases three 1A 13W 4: 1pc USB wire with variety -1m + 1 personal computer brush five LI battery: 1500mAH 6 of Housing: Plastic with portray appearance 7 Capacity: Max eight battery power reveal and on/off nine noisey motor. 10 batter life: whole charger and 15g bean,can grind greater than 15times 11. External adjustment thickness to regulate coarse to fine:38 levels 12 can modify thickness when grinding thirteen grind existence time: grinding 8000 occasions