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 Dimensions: Measurement allowed error is +/- 1-3 cm Color: Black Material: Plastic Compatibility and accessories Compatible with GTO door openers, including models with 9 DIP switches and 3 positions Includes built-in instructions and a sun visor Comes with a built-in 12V 23A battery Usage The RB741 remote is designed for easy operation and programming, allowing you to set your own code settings for enhanced security. It features a long-distance stable operation with a working range of up to 100 feet, thanks to the latest RF technology and powerful security encryption. Other