40V Cordless string trimmer is packed with power to tackle tough weeds. Automatic Feed Spool (AFS) auto feeds trimmer line without bumping. POWERCOMMAND dial controls variable speed to optimize battery life. POWERDRIVE transmission supports more power from the motor. Easily converts from trimmer to edger in seconds. 13" Cutting swath. Uses 0.065" diameter line. Performs 6500-8500 RPM. No gas no mess and no fumes with cordless battery power. Includes: 40V MAX Lithium-ion battery. 40V MAX Fast charger. Spool. Guard. Auxiliary handle.