HIGH EFFICIENCY: The cordless power chainsaw works with 5.6m/s chain speed and break time less than 0.12s with the matching 20V, 1.5Ah battery. The cordless chainsaw contains with 12-inch bar and chain, which design for smooth and fast cuts, chain, battery and charger included For Trees,Wood,Farm,Garden,Ranch and Forest Cutting. LABOR-SAVING: The battery operated chainsaw is designed in lightweight and portable compact size.The weight of the chainsaw is 6.5lbs which is easy for using and controlling for different groups of people. Use only light pressure to press the guide bar against the wood and let the chain saw do the work. AUTOMATIC OILING SYSTEM: The electric chain saw contains with automatic oiling system, automatically provide lubrication of bar + chain, tool-free quick tension knob – easy adjustment of the chain tension without tools, instant tightening of the chain. HIGH POWER BATTERY: 20V 1.5Ah matching battery provide enough power for the electric chainsaw.