Replacement Remote Control: Specifically designed for garage door models, this remote operates at a frequency of 433.92MHz. It is compatible with RSE2-433, RSC2-433, RSZ1-433, and several other models, ensuring wide-ranging use. Comprehensive Compatibility List: This remote is suitable for Liftronic 500/700/800 and Portronic D2500/D5000/S4000 garage door operators. It seamlessly replaces your lost or broken remote with identical functionality. Exclusion Details: Please note that this remote is not compatible with BS Series (RSC4-433-BS, RSZ1-433-BS) and Liftronic 700 Series 2, Liftronic 800 Series 2. Verify your model is compatible before purchase to avoid any inconvenience. The actual product may have slight color variation, which does not affect performance. Color: Grey. Material: Plastic. Package Contents: 2 x Garage door opener remotes. Only the items listed are included; other products are not included. Note: Lighting and display settings may cause slight color differences between the image and the actual item. Measurement may vary by +/- 1-3cm.