[Warm Tips]-- This garage door remote control is a replacement. We recommend that you refer to the list below for device compatibility before purchasing. [Garage Remote Control Replacement]-- Our garage door remote control works with 433.92MHz Rolling Code and is compatible with Crawford Normstahl RCU 433-4K, RCU 433-2K, EA433 2KM, EA433 2KS, EA433 4KS, N002800, T433-4. [Compatible Garage Opener List]-- Our garage door remote control is compatible with Crawford Entrematic Magic 600, Magic 1000, Ultra (all versions after 2005), and Ultra Excellent (all series after 2005). [Lightweight & Portable]-- Thanks to its compact design, our remote control can be attached to your keychain with the included key ring and is always convenient to carry. Color may vary slightly between production batches, but this will not affect performance. Color: As shown in picture Material: Plastic Package Contents: 2 x Remote Controllers Note: Only the items listed above are included; other products are not included. Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3 cm.