✔ PRACTICAL DESIGNS: Equipped with solar panel as the power supply, cost effective and eco-friendly. Unsealed design allows it to work under any weather, water resistant, windproof, sun protective and rustless. ✔ INFRARED DETECTION DEVICE: Infrared detection device is applied so that the approach of animals would be detected, then ultrasonic wave would be sent out to expel the animals. ✔ ULTRASONIC TECHNOLOGY: Ultrasonic waves can be perceived by animals nearby the device instead of human beings, so it does no harm to human body but keeps unexpected animals(cat, dog, spider, rice, snake Scarer) away effectively! ✔ PERFECT PERFORMANCE: A strong ultrasonic wave together with a bright flashing LED light would be activated when animals enters the PIR Sensor range then they would feel uncomfortable and run away from the area. ✔ EFFORTLESS USING EXPERIENCE: Simply take it out of the box, you can insert the device into the ground, or fix against the wall, or place the top part directly on the flat surface. Then what you need to do is just turning on the device, and it will work automatically.