[Compatibility Assurance]-- Specifically designed as a replacement, this remote is compatible with for models HSE2-40, HSM4-40, HS4-40, HSE4-40, HS2-40, and HSM2-40. seamless operation with these specific models for optimal performance. [Exclusive for 40.685MHz Grey Button Models]-- Tailored for remotes with grey buttons, this product is not suitable for remotes with blue, green, or yellow buttons, nor is it compatible with the for BS (BiSecur) series, ensuring precise compatibility. [Dual Programming Options]-- This versatile remote can be programmed as an exact duplicate of your existing remote or set up directly via the door opener's operator or receiver, providing flexibility when an remote is unavailable. Colour:Gray Material:Plastic Package Contents: 1x 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.