[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 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). [Compact & 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. The color of different production batches may vary slightly but does not affect performance. Color: As shown in photo Material: Plastic Package Contents: 2 x Remote Controllers Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.