?High Performance Chain?Our 10? chain runs at 16 ft/s and cuts wood up to 6? thick. 2.0Ah Li-ion battery supports up to 50 cuts on 4?4? lumber at a full charge. Direction mark on the bar helps align the chain correctly. You can tension the chain with the screwdriver attached to the pole. ?Telescopic Pole?The telescopic pole can reach any place between 6.2? and 8.5? sufficient to cut higher branches. You can take it to any job site freely without dragging wires and work without choking fumes. ?Automatic Lubrication?65ml oiler automatically lubricates the bar & chain to ensure smoothness of each cut. You can check the oil level through translucent oiler window. ?Battery?1x2000mAh high-energy-density Lithium-ion battery ensures strong and fade-free power feed. This 20V battery also works with all Litheli 20V tools. ?Lightweight & Easy-To-Use?This cordless pole saw weighs only 7.7 lbs and works with a noise level less than 86dB. A shoulder strap is included to ease the burden