Warm tips: this garage door remote control is more a replacement than an -accessory. We recommend that you refer to the list below for device compatibility before purchasing. Garage remote control replacement: Our garage handheld transmitter works with 433.92 MHz rolling code and is compatible with for Crawford standard steel RCU 433-2, RCU 433-4, 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). and portable: thanks to the small design, our remote control can be attached to your keyring with the included key ring and is therefore always at hand. Note:Due to different production batches, there are differences in color, which does not affect use. Colour:As Shown Material:Plastic Package Contents: 1 * Garage Remote Control 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.