Features 1. Adjustable ultrasonic frequency can repel different animal, such as birds. 2. The solar outdoor pest repeller is weather proof and as such designed for outdoor use. 3. Powered by solar panel, without messy power cord, low energy consumption and environmental-friendly. 4. This is a pest repeller adopted sonic technology which is humane, eco-friendly, pollution free and high efficiency. 5. The solar outdoor pest repeller is effective with the PIR function(Motion sensor), it will sense any movement and activate the system to emit sonic frequencies. 6. Scope of application: It is used for bird repelling in fields and fruit forests, and is also suitable for bird repellent operations in other fields such as electricity, airports, warehouses, etc.   Specifications: Material: plastic Size: 17*14*11.5cm Color: show as pictures   Package includes: 1 * Solar Animal Bird Repeller