This Sony RM-D315 remote control is a genuine OEM original that has been tested and is fully functional. It is designed to operate a CD player audio system and has a wireless range of 5-10 meters. With this remote, you can effortlessly control your audio system from a distance, making it easy to enjoy your favorite tunes without ever leaving your seat. The remote is wireless and offers various features that make it convenient to use. Its compact size and lightweight design make it easy to handle, and it is compatible with Sony audio systems.