The 20V MAX cordless string trimmer features a gear drive transmission design to amplify torque when powering through overgrowth. Our cordless string trimmer provides a 13 in. swath with a 0.080 in. line. The variable-speed trigger offers control, performance, and runtime management with the High/Low speed-control switch. This cordless string trimmer is part of the 20V MAX battery system, so it uses the same batteries and chargers as your 20V MAX cordless power tools and equipment.