Makita BTD144 18-Volt LXT Lithium-Ion Cordless Impact Driver Variable three-speed power selection switch (0-1,300/0-2,000/0-2,600 RPM and 0-1,300/0-2,800/0-3,400 IPM) provides precise fastening control for a wide range of applications Makita-built Brushless Motor Technology delivers increased motor efficiency to provide up to 20% longer battery life per charge Makita-built Brushless Motor delivers 1,420 inch-pounds of max torque Battery warning light and built-in LED light both flash when it is time to recharge the battery Three-year warranty on tool and one-year warranty on battery and charger