The DEWALT DCM572 FlexVolt XR Blower has a highly efficient brushless motor that delivers up to 15 minutes run time (with a 3.0Ah battery). Allowing you to clear more debris, quickly. Its variable speed trigger with lock allows full power control without having to hold down the trigger. The curved tube design creates rotational control and reduces fatigue. Supplied with a concentrator attachment that increases force for stubborn debris. Specification Max Air Flow 195km/hr. (121mph). Speed Variable Speed Trigger. Weight 4.5kg.