The innovative mobile protection against martens, mice, pigeons, seagulls, and bats, for example, on cooling hoses, ignition cables, brake lines, and other components in the engine compartment. You no longer have to worry about unwanted visits from martens and mice in your premises. The mobile marten and mouse repeller uses ultrasonic sounds to keep these biting pests away from your car, home, garage, barn, attic, or garden shed. It is ready to use immediately, requires no power connection, and no installation is necessary.