Introduction 1, USB rechargeable 2 adjustment corase to fine: 38 stages 3 1A 13W 4: 1pc USB cord with form -1m + 1 pc brush 5 LI battery: 1500mAH 6 of Housing: Plastic with painting look 7 Capacity: Max eight battery power demonstrate and on/off nine noisey motor. 10 batter life: complete charger and 15g bean,can grind greater than 15times 11. External adjustment thickness to modify coarse to fine:38 phases 12 can alter thickness when grinding thirteen grind lifestyles time: grinding 8000 occasions