The DHR280ZWJ rotary hammer, including the DX08 Dust Collection System, is powered by 2x 18V LXT batteries that power the 3 operating functions: rotation only/rotation & hammer/hammer only. This unit comes equipped with an LED joblight & variable speed trigger, as well as an electric break to stop the tool near-instantly in order to keep you safer at work; a soft-no load system that eases any excessive forces when idling to allow you to properly control the unit when it's not in use, which saves stress & strain on your joints; plus a brushless motor, which reduces friction & increases the efficiency of energy transfer, meaning that your tool will be able to do more on a single charge! It's also torque limited & included anti-vibration technology to reduce the risk to you.