The ultrasonic repellent device produces high-frequency ultrasonic waves that repel animals without harming them, affecting their auditory nerves, making it unpleasant for them to stay in the coverage area. It is odorless and silent for humans and pets. It can be placed in both indoor and outdoor areas. Powered by solar energy and operates day and night. It is suitable for cottages, farmhouses, orchards, gardens, camping, countryside, etc.