[Warm Tips]-- This garage door remote control is a replacement rather. 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 for 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 for Crawford Entrematic Magic 600 / Magic 1000 / Ultra (all versions after 2005) / Ultra Excellent (all series after 2005). [ & 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 be different but will not affect the use Colour:Photo Color Material:plastic Package Contents: 2 x remote controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.