• Provides up to 13,500 sq ft of coverage• Gets rid of moles, voles, gophers, shrews & other burrowing rodents• Patented motor drive generates powerful vibrations that, though harmless to pets & humans, are irritating to rodents• Intermittent emissions minimize the chance that rodents will become immune to the effect• Anodized with a rich, gold tone & crafted from a single billet of aluminum to ensure lifetime performance• Watertight cap allows easy insertion at ground level, protecting lawnmower & making it virtually invisible• Patented battery cylinder allows user to change batteries without removing the unit from the ground