40V max XGT Brushless Cordless 16 inch Rear-Handle Chainsaw with Wet Guard (5.0Ah Kit). Brushless DC motor with high power to weight ratio generates less heat buildup and is ideal for prolonged cutting applications. Low noise level at only 104 dB(A) with zero emissions for operator comfort and reduced environmental impact. Toolless bar mounting and chain tension adjustment for quick and easy set up and adjustment on the jobsite. Automatic chain oiler maintains optimal bar/chain lubrication during operation with no adjustments required. Chain oil view window enables operator to easily check oil level. Push-button on/off switch with auto power-off function for extended battery life. Lock-off button prevents accidental start up for maximum operator safety. Variable speed trigger switch (0 - 5,020 FPM) allows operator to adjust cutting speed. Inertia chain brake provides maximum operator protection if kickback occurs. Wet guard with IPX4 rating offers maximum protection in wet environments. Ergonomic soft rubber grip design for vibration absorption and comfortable operation.