Features Four in One Remote Control: Four buttons for setting open close alarm, lock, and more, with 433.92MHz frequency for easy installation of new drivers. Universal Compatibility: Operate your car, sunroof, garage door, gate, power window, heating system, lights, and alarm system with ease by copying existing car remotes. Effortless Operation: Simple and convenient to use, this remote control is made with ABS material and runs on a 27A 12V 30mah alkaline battery (built in). Versatile Functionality: Control a wide range of devices with a single remote, ensuring convenience and efficiency in managing your various systems. Convenient Design: Featuring a compact and portable design, this remote control is a handy tool for efficiently controlling multiple devices at home or in the car. Specification: Item Type: Garage Door Remote Control Material: ABS Frequency: 433.92MHz Battery: 27A 12V Alkaline Battery 30mah [Shipped with Built in Battery] How to Use: Press button control Package List: 4 x Remote Control Package List 4 x Remote Control