High speed and torque for fast and efficient trimming. TOOL ONLY.USER BENEFITS:Automatic speed control: Automatically changes the cutting speed according to load condition.Lightweight and compact head for reduced operator fatigue.BL motor located at trimmer head for improved balance and functionality with no loss of mechanical power.High speed and torque for fast and efficient trimming.Variable speed control dial to allow the user to match speed to application.Battery and charger sold separately.