Perfect and 100% compatible replacement for your Hörmann 868 MHz garage door opener with blue button! This HSM4 mini hand transmitter offers an economical and efficient solution for controlling your garage door or gate. Ideal for homeowners who want an extra remote control, a spare, or to replace a defective one. Ready to use with batteries included. Technical specifications Frequency: 868.3 MHz Number of channels: 4 buttons Coding: Self-learning Range: Approximately 30 meters Battery included: 1 x 12V 23A alkaline battery (per remote control) Color: Black casing / blue button Package contents: 2 remote controls with batteries + programming instructions Installation Installation is quick and easy. It involves programming your existing Hörmann receiver. Follow the detailed programming manual included to easily synchronize this new remote control with your system in just a few minutes. You can do it yourself. Usage Thanks to its compact size, this garage door remote control easily fits in your pocket or car. Its 30m range allows you to operate your garage door or gate conveniently and safely as soon as you approach. Intuitive operation with its 4 buttons offers the potential to control multiple functions or devices.