This is the rechargeable chainsaw found by the Hammacher Schlemmer Institute to be superior to other models because of its cutting efficiency and its battery performance. Analysts tested the operation of multiple rechargeable chainsaws on 9 1/2", 14 1/2", and 15" diameter oak, and this chainsaw sawed through the wood at an average of 17.52 seconds while other inferior models took 36.5% longer. It was the fastest-charging (33 minutes) model and operated for 50 minutes, unlike lesser models that took 50 minutes to charge and only provided 22 minutes of operation. The chainsaw also possesses a professional 18" cutting bar that reduces cutting time and strain by allowing one to saw through a higher quantity of brush and thicker wood. Its brushless motor’s reduced vibration yielded only 86.4 dB of noise making it the quietest of all models. With automatic chain oiler, simple push button start, and wrench. Included charger plugs into AC. 32 1/4" L x 9" W x 9" D. (14 1/2 lbs.)