Important tips: this garage door remote control is more of a replacement than an original accessory. We recommend that you consult the list below for device compatibility before purchasing. Replacement garage door remote control: Our handheld garage door transmitter works with 433.92 MHz rolling code and is compatible with Crawford standard steel RCU 433-2, RCU 433-4, EA433 2KM, EA433 2KS, EA433 4KS, N002800, T433-4. Compatible garage door 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). Small 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. Note: Due to different production batches, there are color differences, which does not affect the use. Color: As shown Material: Plastic Package contents: 1 * Garage door 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 to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.