Great Substitute: This garage door opener is designed to replace rather than supplement suitable for original-accessories. To compatibility, take note of the device models in the list below be suitable fore making a purchasing decision. It's crucial to verify your remote control's model to avoid any compatibility issues. Broad Compatibility: Our garage remote control is a suitable replacement suitable for models including HSE2-40, HS4-40, HSM4-40, HSE4-40, HS2-40, HSM2-40. It's an perfect solution suitable for lost or broken remote controls, providing easy accessibility and operation. Exclusively suitable for 40.685MHz Grey Button: This garage remote control is only compatible with remotes equipped with grey buttons. Please take note that it doesn't work with blue, green, or yellow buttons, as well as suitable for 's BiSecur (BS) series remote controls, hence it's vital to verify your remote's design be suitable fore purchasing this set. Flexible Programming: The new remote has two programming methods: it can be an identical copy of the suitable for original-remote or programmed from the garage door's opener operator or receiver in case an suitable for original-remote is unavailable. This introduces flexibility that accommodates circumstances. Please note:There is a slight color difference or difference in kind, it does not affect the use, please do not mind, thank you! Colour:Gray Material:Plastic Package Contents: 2 * garage door opener 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.