General description This HSM4 868MHz Garage Door Remote Control is a reliable replacement for the Hörmann HSM 4 handheld transmitter. Designed for convenience, it features a compact design and operates at a frequency of 868.3 MHz, allowing for a range of up to 30 meters. This remote control is equipped with 4 buttons and comes with 2 included batteries, making it ready to use right out of the box. Technical specifications Frequency: 868.30 MHz Channel: 4 Coding: self-learning Battery type: 12 V, 23 A Range: up to 30 meters Color: black housing with blue button Compatibility and accessories This remote control is compatible with the following Hörmann models: HS1, HS2, HS4, HSM2, HSM4, HSE2, HSZ1, HSZ2, HSP4, HSP4-C, HSD2-A, HSD2-C. It is not compatible with other Hörmann frequencies, colored buttons, or the Hörmann BS series. Contents include 1 remote control and a detailed programming manual. Usage To use the remote control, follow the programming instructions provided in the manual.