Battery-operated and light-weight.Lubricate chain saw automatically and oil level is visible 1.18-volt high-power motor and battery system 2.Cutting length:250mm 3.Charging Time:4Hours4.Speed:2.9m/s5.Oil Tank Capacity:150ml 6.Color box:43*19.5*23cm7.Carton/pcs:44.5*41*48cm/4pcs,15/16kgs8. Qty:20'GP 1232PCS 40'GP 2600PCS 40'HQ 3060PCS 18v LI-ION Cordless Chain Saw