Marterverjager DUOPack

This device uses ultrasound to deter martens from damaging vehicles, covering up to 45 square meters. It can be used indoors or outdoors and operates on batteries, USB, or car power.

• The description claims the device prevents damage to cars.
• The description claims it works up to 45 square meters.
• The description claims it is animal-friendly using ultrasound technology.