General description This 3-Pack Universal Replacement Remote Control for Electric Garage Doors operates at 433 MHz and features four buttons that can copy four different chip types simultaneously. This single remote control can manage multiple structures, providing a cost-effective solution for your remote control needs. With its advanced radio frequency technology, it offers a non-directional transmission that is highly sensitive and reliable. Technical specifications Frequency: 433 MHz Transmission range: 50-100m (open space) Usage Suitable for cars, car roofs, garage doors, gates, alarm systems, heating systems, and home automation.