Compatibility: Perfectly compatible with 2-Key for models including , GT4, GTI2, GTI4, GTI2N, GTI4N, GTI2M, GTI4M, and for GENIE models 273, 273L. Also works with TR2, TR4, TR2N, TR4N garage door openers. Advanced Security: Equipped with 433.92MHz rolling code technology, ensuring that your garage door opener responds only to your remote, enhancing security against unauthorized access and Reliable: Built to withstand various weather conditions, ensuring long-lasting performance and reliability Easy Programming: Simple setup process allows for quick and easy programming with your existing garage door systems Color: Black & White Material: plastic Package Contents: 3 x 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.