General description You will receive 4 pieces of the RB741 FM135 remote control, designed specifically for GTO door openers. This single-button clicker is easy to operate and program, making it a reliable choice for your garage door entry needs. Technical specifications Working frequency: 318 MHz Supported models: 350, 500, 502, MM260, MM271, MM360, MM371W, MM372W, MM560, MM562, MM571W, MM572W, MM600, MM660 DIP switches: 9 switches with 3 positions Operating range: up to 100 feet Battery: built-in 12V 23A battery Color: Black Material: Plastic Measurement allowed error: +/- 1-3 cm Compatibility and accessories The RB741 FM135 remote control is compatible with various GTO door openers, including models such as 350, 500, 502, MM260, MM271, MM360, MM371W, MM372W, MM560, MM562, MM571W, MM572W, MM600, MM660, and others featuring 9 DIP switches. Usage This remote control is designed for easy operation and programming, allowing you to set your own code settings for enhanced security. Its