Package Content: You will receive 4 pieces of RB741 FM135 remote controls, compatible with GTO door openers. Each remote includes built-in instructions, a sun visor clip, and a pre-installed 12V 23A battery, providing everything needed for immediate use and convenient operation.Compatibility: The RB741 FM135 remote control is designed for GTO door openers with 9 DIP switches, 3 positions, 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 for quick code configuration. Compact size and lightweight design make it easy to carry and use daily.Supported Models: 350, 500, 502, MM260, MM271, MM360, MM371W, MM372W, MM560, MM562, MM571W, MM572W, MM600, MM660, and other models with 9 three-position DIP switches.Performance and Reliability: Upgraded with the latest RF technology and enhanced security encryption, this remote offers improved signal range and resistance to interference. Provides stable operation up to 100 feet. Designed for reliable, long-distance performance with your GTO opener.Color: Black Material: Plastic Package Contents: 4 x Gate Opener Remote Control Note: Light reflection and display differences may cause slight variations between the product color in images and actual color. Measurement allowance is +/- 1-3 cm.