Our most versatile Marten defense. In case of rodent problems in the car, it can be connected to the car battery with the enclosed cable. If the battery connection is not desired or the device is to be used outside the engine compartment, it can also be operated with standard Mignon (AA) batteries (not included in the delivery).ideal for rodent problems on the attic. The device emits high-frequency sounds at 30-second intervals to disturb martens. Other places will make the animals feel more comfortable. In addition, an LED flash takes place in the 60-second interval. Rodent-free dual has a built-in vibration sensor. This switches the device off in case of vibrations, for a power-saving use in the engine compartment. Cable ties and fixing screws are included for installation.This text is machine translated.