The FSA 57 lithium-ion trimmer offers excellent value in a lightweight, battery-powered design, making it a great choice for maintaining suburban yards. This cordless trimmer cuts an 11-inch swath at a consistent high speed, helping you save time while maximizing the performance of the Stihl AK System battery. With the AK 10 battery, the trimmer weighs under eight pounds and delivers up to 25 minutes of run time on a single charge. For added comfort and convenience, it includes an adjustable shaft for customized height, an easy-to-use AutoCut head with noise-reducing line feed, and a bump guard for precise trimming around trees, shrubs, and other obstacles.