Cheap power hedge trimmers vibrate so much you will think your teeth are going to fall out. Better hedge trimmers use two cutting blades instead of one to make the trimming go much more smoothly. This double-action cutting balances the entire unit and reduces vibration by as much as 90 percent in some models. Electric models are easier on the ears and the lightest in weight. Multiple handles make it just as easy to maneuver a trimmer around the sides of a hedge as to trim the top of the hedge.
Some models come with one handle that wraps around the entire unit.
Others come with two handles. The largest models can have as many as three handles. Their number and placement depends on the trimmer's weight and length. Scissors, of course. Better power hedge trimmers feature two cutting blades that act like scissors.