MATRIX Quick Connect System: Quickly and easily change out attachments from the Power Unit SAVE MONEY AND SPACE: The MATRIX system is more cost effective and saves more space in your home than dedicated power tools BUILD YOUR MATRIX SYSTEM: This works with the power unit in the BDCDMT120C, BDCDMT120WC1, BDCDMT1206KITWC, and BDCDMT1206KITC 2 HEADS IN ONE: Shears for tall grasses, Shrubber for busshes and branches CORDLESS: Using the Matrix 20V Power Unit, manicure your lawn without worrying about an outlet