General description This 2 Pack Garage Transmitter features blue buttons and operates at 868MHz, designed as a replacement for various HORMANN models. It is important to note that this remote is not compatible with transmitters that have gray, green, or orange buttons, nor with the HORMANN BS BiSecur series. Compatibility and accessories Compatible with HORMANN garage door remote controls: HSE2-868, HSE4-868, HSM4-868, HSM2-868, HS4-868, HS1-868, HS2-868, HSZ1-868, HSZ2-868, HSP4-868, HSP4-C 868, HSD2-A 868, HSD2-C 868 Compatible with Tubauto gate remote controls: HSM4-868, HSM2-868, HS4-868, HS2-868 Installation Two methods of programming: 1. Cloning the remote control. 2. Programming via the receiver. Other information This garage door remote control is a replacement, not an original product. If you have questions regarding programming, usage, or quality, please feel free to reach out for assistance.