Features: Enhances convenience with this high sensitivity automatic door remote featuring for garage door opener operational. Crafted with ABS, the portable remote control include keychain clip for easy attachment to belts or bags. Ideal for homeowners, warehouse managers, and poultry farmers requiring multiple door access control solution. Effortlessly manage gate in driveways, chicken coops, or parking lots without direct physical contact. Wireless design ensuring integration with rolling door systems while maintaining stability across varied environment. Specifications: Component:ABS Frequency: 433.92MHz Number of button: 2/4 Size:Approx.50mm/1.96inch Package Includes: 1Pc Automatic Door Remote Control note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.