Features: Designed as a direct replacement for 4020 TX03 868 4 868.8MHz SOMloq1 systems, this garage door remote ensures seamless compatibility with openers for stable access control. Crafted from strong plastic with a compact keychain design, this lightweight garage door keychain remote offer ergonomic handling and long lasting performances for daily operate . Ideal for homeowners or facility managers seeking a backup or replacement remote specifically tailored for garage door opener systems. Effortlessly activate your garage door from vehicles or entryways using this portable keychain transmitter, perfect for quick access during commutes or deliveries. Verify your existing opener's brand and frequency compatibility before purchase to secure optimal functionality of this specializes garage door remote control. Specifications: Component : plastic Size: about 10x30x83mm/0.39x1.18x3.27inch Battery: included Package Includes: 2xDoor Remote Control note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.