Package Content: You will receive 4 pieces of RB741 FM135 remote controls, compatible with GTO door openers. Each remote comes with built-in instructions, a sun visor clip, and a pre-installed 12V 23A battery, ready for immediate use and convenient operation.Compatibility: The RB741 FM135 remote control is designed for GTO door openers with 9 DIP switches, 3-position coding, and a working frequency of 318MHz. Compatible models include 350500502, MM260, MM271, MM360, MM371W, MM372W, MM560, MM562, MM571W, MM572W, MM600, and MM660.Easy to Program and Portable: Simple setup and programming process allows you to quickly configure your remote. Compact size, lightweight design, and secure construction make it easy to carry and reliable for everyday use.Supported Models: 350, 500, 502, MM260, MM271, MM360, MM371W, MM372W, MM560, MM562, MM571W, MM572W, MM600, MM660, and other models with 9 DIP switches and 3-position coding.Performance and Security: Upgraded with the latest RF technology and enhanced encryption design for improved signal reliability and range. Offers up to 100 feet of operational range with reduced interference for stable, long-distance performance. Ideal for GTO gate and door opener systems.Color: Black Material: Plastic Package Contents: 4 x Gate Opener Remote Control Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement may vary by +/- 1-3 cm.