Electric brake for increased operator safety. Soft start feature gradually increases speed to eliminate start up shock. Equipped with Star Protection Computer Controls™ to protect against overloading, over-discharging and over-heating. Collapsible design fold in half for compact storage. Includes: 18V (5.0 AH) Li-Ion battery BL1850B (196675-2), standard charger (DC18SD), bump and feed trimmer head (191R00-0), protective guard(412580-8), shoulder harness (127508-0), hex wrench 4 (783202-0).