LXT Lithium-Ion battery and optimum charging system produces 280% total lifetime work with 2x more cycles. Makita built motor delivers 50% faster cutting with 6-setting variable speed dial at 275 - 530 ft./min. Adjustable foot protects material & provides positive support for accurate cuts. More compact design at only 20-5/8" long and weighs only 14.1 lbs. for less operator fatigue. Ergonomic shape fits like a glove with even pressure and easy control. LXT Lithium-Ion provides longer run time, 5x lower self-discharge (for use any time) and 16 firm holding contact terminals (for constant high power). Two built-in L.E.D. lights with afterglow illuminate the line of cut. Built-in protective rubber bumpers. Built-in skyhook. 3-year warranty on tool. Battery and charger sold separately.