Wide Frequency Range Compatibility: Designed to operate across multiple frequencies including 433MHz, 433.92MHz, and 434.54MHz, this remote offers exceptional versatility. It is compatible with most garage door systems, making it a universal solution for your garage access needs. Advanced Rolling Code Technology: This garage door remote control utilizes sophisticated rolling code encryption to enhance security. Each time the remote is used, a new code is generated, which prevents code grabbing and unauthorized access, ensuring your home's safety and peace of mind. Compact and Portable Design: The keychain design of this garage door remote control makes it incredibly portable and easy to carry. Attach it to your keys for convenience and never worry about losing your garage door opener again. Its small size does not compromise its functionality or range., Manufacturer: Jnchdghwa