The 4aH battery bundle comes with one Hyper Tough 4aH batter along with The Hyper Tough 12-Volt Max* Brushless 2-Speed Drill Driver. The brushless 2-Speed drill driver provides up to 30% more power, 10x longer motor life and 30% more runtime compared to the standard brushed models. This brushless tool outputs over 370 in. Lbs. of torque, delivering up to 1600 RPM to drive screws faster. The light-weight drill driver is only 6.25-inches in length making it an excellent choice for overhead installations and tight workspaces. Featured on this drill is a 2-speed setting for better handling and control with adjustable gearing providing versatility based on the task you perform. Setting 1 is low speed high torque and is best for driving screws. Setting 2 is a high speed torque and is best for drilling or driving through solid materials. The 3/8-inch keyless chuck is easy to use and will quickly loosen and tighten. The drill driver features onboard LED lights, battery life indicator, and a belt clip helping you work efficiently. The Hyper Tough 12-Volt Max* Brushless 2-Speed Drill comes standard with a 1.5Ah 12-Volt Li-Ion battery and charger and includes a 2-Year Limited Warranty. Discover the entire family of Hyper Tough 12-Volt tools and accessories exclusively at Walmart.