Dual-grip variable speed trigger gives users ultimate speed and application control, Bright LED light illuminates dark work surfaces for accurate cutting, Universal accessory adapter for use with most oscillating tool accessory brands, Quick-change accessory system allows blades and attachments to be changed quickly without wrenches, Brushless motor delivers up to 57% more run time over brushed, 0 OPM to 18,000 OPM, Best used with Battery Models DCB240, DCB240-2, DCB240C, DCBP034, DCBP034-2 or DCBP034C. Must be purchased separately and is not included..