Ultrasonic repellent device from Swissinno produces high-frequency ultrasonic waves that repel animals without harming them, affecting their auditory nerves, making their stay in the coverage area unpleasant. It is odorless and silent for humans and pets. It can be placed indoors and outdoors. It is powered by solar energy and operates day and night. It is suitable for cottages, farms, orchards, gardens, camping, countryside, etc.