[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 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 works with Crawford Entrematic Magic 600, Magic 1000, Ultra (all versions after 2005), and Ultra Excellent (all series after 2005). [Compact and Portable] Thanks to the small design, our remote control can be attached to your keychain with the included key ring and is therefore always at hand. The color of different production batches may vary but does not affect functionality. Color: As shown in photo Material: Plastic Package Contents: 2 x Remote controllers Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement may vary by +/- 1-3 cm.