Brushless DC motor generates less heat buildup and is ideal for use in prolonged manufacturing/production applications. eXtreme Protection Technology (XPT) offers maximum protection against dust, dirt and debris for optimal performance in extreme conditions. Items included: 40V Max (4.0ah) Li-Ion battery BL4040, rapid charger (DC40RA), blade (1 ea B-05038), blade (1ea.B-05044), blade (1 Ea.B-05153), plastic carrying case (821796-8).