The Earthquake 60V Walk Behind String Mower performs like a gas string mower, but without the hassles of fuel, noise, and exhaust. Mow for up to 45 minutes on a single charge and double your cutting time with the additional 4Ah battery included in the box. That's 90 minutes of mowing without needing to recharge. A direct-drive, brushless motor means no belts to break or wear out. The offset cutting head is designed to reach around fences and up close to buildings. A three-speed dial allows for an adjustable cutting speed to deliver the perfect amount of power to the 22" cutting head no matter what material you are taking down. The Earthquake 60V String Mower is light weight and well balanced, and features extra-wide airless wheels to float effortlessly across all terrain. Line replacement is easier than ever before thanks to the innovative new cutting head design that allows for six different cutting heights (1.5"-4.0"). A starter pack of 0.095" and 0.155" cutting line is included. The handlebars fold down for simple and compact storage. You can rest easy knowing that Earthquake 60V products are protected by a 5-year limited tool warranty and 3-year limited battery warranty. Patent Pending Design.