The HR-150 is the Standard Unit in the newestgeneration of Ozonics' exciting scentelimination technology for hunters. The HR-150 safely utilizes small concentrations ofozone, a known industrial odor eliminator, toeliminate human related odors downwind.The HR-150 is primarily designed for use ina ground blind achieving near 100% odorremoval, but can also be used in a treestand with nominal 70% success. Productfeatures: one output mode, low battery indicatorand green lights for set-up/tear down.Packaging contains: One Each-HR-150 w/rechargeable battery (-5 hr hunt life), batterycharger and mounting device for blind andtree. Dimensions: H-3.5, W-7.7, D-5.8.Weight: 1.75 lbs.