This brushless line trimmer is loaded with features, A Makita-built outer rotor BL Brushless motor direct-drive system provides high power and increased torque. Automatic torque Drive Technology (ADT) mode automatically shifts from 3, 500-6, 500 RPM for extended run time or added power. 3 speed options (low: 3, 500 RPM, medium: 5, 300 RPM, high: 6, 500 RPM) for power management. 15" Cutting swath for increased productivity. Includes bump and feed trimmer head loaded with 0.080" Twisted quiet line. Steel drive shaft for less vibration and longer life. Reverse rotation function allows operator to quickly clear trimmer head of entangled grass and weeds. Adjustable loop handle for operator comfort. Active Feedback Technology (AFT) automatically shuts down the machine to protect the operator by detecting a reduction in speed such as in hitting a tree stump or fence post