As part of the Ryobi ONE+™ system of over 150 cordless tools for the home, garden, automotive, crafting and much more, the Ryobi 18V ONE+™ RCS1830-140B Cordless 30cm Brushless Chainsaw is perfect for cutting logs and branches, cutting firewood and so much more.   Green star claim - A brushless electronic motor runs more efficiently than brushed types. This can help reduce the tool's energy consumption. * Features and benefits Cordless Chainsaw ideal for pruning, limbing, bucking and felling medium sized trees The Powerful Brushless Motor delivers smooth high quality cuts and results in greater productivity High quality 30cm Oregon® bar and chain Tool-less chain tensioning for easy set up and adjustments Automatic oiling system for user convenience and consistent chain lubrication. Mechanical and electrical chain brake shuts down the tool during an accidental kickback for added safety This kit comes with 1 x 4.0Ah ONE+ battery and a charger Matching chain: Ryobi RAC227 12" Chainsaw chain