The GENESIS GLID20A 20-Volt Lithium Ion Impact Driver has a Compact Design with a High Performance Motor that Delivers an Incredible 1062 in./lbs. of Torque Power. The High-Power Variable Speed Transmission delivers 0-2200 RPM and 0-3800 IPM (Impacts Per Minute). The Ergonomic Handle has Rubber Inserts and provides Comfort and Control. The Impact Driver includes a built-in LED work light, an On-board Battery Power Indicator and an Electric Brake. The tool weighs 2.5 pounds and includes a 20-volt Compact Lithium-ion 1.5Ah battery pack, a compact charger and #2 Phillips impact driver bit. Using Lithium-ion Power, the impact Driver gives you a Compact, Powerful and Versatile Package. It has More Power and Double the Run Time of ni-cad impact drivers and the battery can hold its charge for over 18 months in storage.