The innovative ISOTRONIC Anti-Marten device. Battery-powered, mobile, and highly effective. From now on, you no longer have to be annoyed by unwanted marten visits in your living space. ISOTRONIC Anti-Marten Mobile uses successive ultra-high sound signals to keep these gnawing pests away from your home, garage, shed, attic, or summer house. Ready to use; no power connection or assembly required. The integrated 30-second interval circuit prevents the marten from getting used to the sound. No more cumbersome wiring: this new ISOTRONIC device can be used directly in any conceivable location without a connection. Place it. Turn it on. Martens stay away. The device can be attached in the shed with cable ties or screws. Depending on the battery, the device can be used continuously for at least 6 months. Ask a product question