REPLACEMENT FOR GARAGE REMOTE CONTROL: Specifically designed for models including RSC2-433, RSZ1-433, RSE2-433, RSE4-433, RS2-433, RS4-433, RSN2-433, RSM4-433, this remote operates at a frequency of 433.92MHz, ensuring seamless functionality with your existing garage door system. COMPATIBILITY LIST: This remote control is fully compatible with Liftronic 500, 700, 800, and Portronic D2500, D5000, S4000 garage door operators. It's tailored to seamlessly integrate with these specific models, providing reliable and efficient operation. INCOMPATIBILITY INFORMATION: 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. For any compatibility questions, customer service is available to assist. DESIGN AND DURABILITY: Featuring a robust metal base and a practical opening at the bottom, this remote control is designed for convenience. It's ideal for attaching to your keychain, ensuring it's always handy when needed. Color: black. Material: plastic. Due to different production batches, there may be variations in product appearance and printed text, which do not affect functionality. Package Contents: 2 x Garage Door Remote Control. Only the items listed above are included; other products are not included. Note: Lighting effects and monitor settings may cause slight color differences between the image and the actual item. Measurement error is +/- 1-3 cm.