Smart Replacement: This efficient garage door opener is specifically designed to replace for 433.92 MHz, not an original product. Universal Compatibility: Engineered for perfect synchronization for handheld transmitters RSC2, RSE2, Liftronic500/700/800. However, not suitable for Liftronic 700 Series 2, Liftronic 800 Series 2 or BS Series (RSC4-433-BS, RSZ1-433-BS). Convenient Two-Button Programming: Our 2 button remote control garage door opener is user-friendly and easy to program, providing you with seamless and secure access to your garage. Perfect Dimensions for Portability: This remote control is handily sized at 66 mm x 30 mm x 14 mm, making it effortlessly compact and easy to carry around in a pocket or on a keychain. The actual product may have slight color differences or differences, which does not affect use. Color: Black material: plastic Package Contents: 2 x garage door opener remote Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.