Tool-free blade replacement system holds the blade securely, Ergonomic shape allows easy maneuvering in hard to reach places, non-slip handle and switch with potentiometer, light weight and durable body with removable foot, 4-level battery indicator and battery cell overheating protection., The set includes: a sabre saw, an 18V Li-ion 2 Ah battery and a quick charger (1 h for 2 Ah battery)