The innovative mobile protection against martens, cats, and mice. Battery-operated (not included), portable, and highly effective. You will no longer have to worry about unwanted visits from martens, cats, and mice in your premises. The mobile marten, cat, and mouse repeller uses ultrasonic interval sounds to keep these pesky creatures away from your car, home, garage, barn, attic, or garden shed. The integrated interval setting of 50 seconds prevents the animals from getting used to the sound.