| 20":640pcs, 40":1280pcs.mininum order qty 500pcs.1)220v,110v,14v,53w2)fireproot ABS3)suctin:0.35KPA4)votageof battery:NI-MH 14.4V5)RECHARGE TIME:3.5H6)dust hold:0.3liter7)weight:3kgsOur Rechargeable battery :2500mA ,Others factory usuallly 1700mA, the battery can run 80 minutes. | 
