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 damaged 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. Color: Grey Material: Plastic Package Contents: 2 x Garage door opener remote Note: The actual product may have slight color variations or design differences, which do not affect performance. Light reflection and different display settings may cause the item color in the picture to vary slightly from the real thing. Measurement allows an error of +/- 1-3cm.