DESIGNED FOR USE AT LONG TERM: Chicken coop door shutters are designed for long term use. long term. No wires or wires are required, and the blinds are powered by 3 AA batteries (batteries not included). not included). Complex wiring means low risk of failure. Easy installation and adjustment: Detailed instructions are included on the roll-up door. You don't need to assemble the door opener, just install it in the right place. We also provide diagrams to help our valued customers. Anyone can install our product in 10 minutes. Everything for your convenience; : the automatic chicken coop door concept is entirely designed for convenience. of our valued customers. The battery box is the surface layer of the drive system, no need to open the house to replace the battery. Multi-scenario use: The new generation of chicken coop shutters has a light sensor mode. Closed when it gets dark. Automatic chicken coop doors are perfect for any scene. Protection: The chicken coop door has a protective