In addition to its surround sound capabilities, the X-52 can be used as stereo headphones by attaching the included stereo adapter cable. That means you can enjoy surround sound with your PC games and movies, then disconnect the headphones and use them with your stereo audio devices, such as MP3 players. A stereo 3.5mm to 1/4” adapter is also included for compatibility with larger headphone sockets on high-end audio equipment.