The DeWalt DCF850P 20V Brushless Impact Driver Kit includes 4 items in the set, with a lithium-ion battery included and a battery capacity of 5Ah. This compact impact driver, designed by DEWALT, offers 850W of power and features a 1/4 inch chuck size. With a brushless motor type, it is perfect for various home and workshop projects, making it a convenient and powerful tool for any DIY enthusiast or professional user.