The Black+Decker STC1820PC Cordless Strimmer is fitted with a Power Select Run Time Extender, that increases the power for tough overgrown areas or reduces the power for lighter tasks and to extend battery run time. Powered by E-Drive, a high torque gear system that powers through even the toughest overgrown areas quickly without clogging. With an improved flip to edge mechanism, easily converting the strimmer from trimming, to wheeled edging mode. Precision edging guide wheel for perfect lawn edges every time. 28cm cutting swath for fast job completion over large areas and AFS Automatic Single Line Feed System, saves you time and effort Optimal comfort thanks to its easily adjustable second handle and telescopic tube for greater control and comfort. Compatible with the CM100 City Mower Base (NOT SUPPLIED) for more controlled, comfortable cutting over larger areas. Supplied with 1 x 18V 2.0Ah Li-ion Battery and Charger & 1 x Spool & Line. Specification Line Cutting Speed 5,500-7,400/mi