Features 56-Volt Lithium-Ion Battery: Industry’s most powerful battery 33cm Cutting Width for Efficient trimming Dual cutting speed selection Bump Feed Line Advance: To control the cutting line length Quick and Easy Line Replacement: Hook, wrap, go! Oversized Aluminum Shaft: Cover large areas quickly and efficiently Soft Start with Constant Speed Control: A slow ramp up to full speed for consistent trimming Up To A 45-Minute Run Time: Plenty of run time to get the job done