The DX11 combines two of Turtle Beach"s hottest products into one deluxe combo package. They took the battle-tested X11 headset, designed for XBOX 360 audio and chat over XBOX LIVE and partnered it with the Ear Force DSS to transform the X11 into a full Dolby digital surround sound headset. The X11/DSS combo pushes your XBOX 360 gaming experience to a new level with the thrilling realism of Dolby 7.1 surround sound and crystal-clear communication over XBOX LIVE - and saves you a bundle over the cost of buying the X11 and DSS separately.The DX11 gives you a competitive advantage by bringing out sound cues in the game that are difficult to hear with speakers - such as the footsteps of an enemy sneaking up on you or the loading of a weapon at a distance. By combining online chat while immersing yourself in DSS-powered Dolby 7.1 channel surround sound, you can efficiently communicate with online players without being distracted from the game.With its exceptional audio quality, online communication and comfortable ergonomic design, the DX11 can help you become a better player while making it a lot more fun to play your favorite video games!Headset Specifications: • Speakers: 40mm diameter speakers with neodymium magnets • Condenser Microphone Frequency Response: 50Hz - 15kHz • Weight: 6.4 oz (233g) • Speaker Frequency Response: 30Hz - 20kHz, >120dB SPL @ 1kHz • Cable length: 16 ft. (4.87m) Box Includes: • Ear Force X11 Headset with amplifier • Ear Force DSS digital audio processor • Digital optical cable • USB cable • XBOX controller talkback cable • User"s guide