We have sold many different ultrasonic animal deterrents over the years but nothing like these latest models from pest reach the combination of pir technology with the latest strobe led lights and ultrasonic sound really make these models stand apart from others on the market our two versions are available either as battery operated h27cm10in or solar powered h38cm15in to give you even more protection against unwelcome cats dogs squirrels rabbits deer and rodents simply affix to a wall