With battery operation, you don't have to mess with cables or electrical outlets. It has a great battery life of 75 minutes. The hedge trimmer's bar has a normal length of 55 cm.
From Alan Wadkins
Dewalt DCMPH566P1-GB 18v Cordless Pole Hedgetrimmer Long Reach 1 x 5.0
Powertool World
DeWalt DCMPH566P1-GB 18v XR Pole Hedge Trimmer Inc 1x 5.0Ah Battery