• Gets rid of moles, voles, gophers, shrews & other burrowing rodents• Made of sturdy, high-impact materials• Weatherproof & proven effective• Penetrating sonic pulses of 300 Hz at 15-sec intervals irritate burrowing rodents & motivate them to move to a more comfortable home• Unit can be buried flush with lawn, allowing easy mowing without detracting from the landscape• Patented battery cylinder allows user to change the batteries while the unit remains in the ground• 4- to 6-month battery life• Lifetime warranty