Long-term use design: door openers are designed for long-term use. There are no wires or cables, and the opener is powered by 3 AA batteries (batteries not included). No complicated wiring means low risk of default. Easy to install and set up: The coop door opener comes with detailed instructions. You don't need to assemble the door opener, just install it in the correct location. We also provide auxiliary cardboard to our valued customers. Everyone can install our product in 10 minutes. All for your convenience: The concept of automatic chicken coop doors is entirely for the convenience of our valued customers. The battery compartment is located on the surface of the drive system, eliminating the need to remove the coop to replace the battery. Multi-mode and multi-scene use: Function: light sensing, liftable, waterproof (IP44)Different modes can work together, Procedure: The chicken coop door has a protection mechanism. If the door hits the chicken, it stops automatically. Don't worry about hurting your cute chick.