Vole defense "Four Seasons" Moles are active all year round. In summer, they are often driven away with solar-powered repellents. However, these are not charged in winter. The low temperatures also damage the batteries. There are solutions with batteries for the winter. To conserve resources, Gardigo now offers a mole repeller for the whole year: two solutions in one device! In summer, you can operate the 4 seasons mole repeller with solar power. When the days get shorter, simply replace the head of the device. Burrowing animals quickly become annoyed by the sound the device makes underground and will look for a quieter place. Technical data