The Creative Labs Sound Blaster for iTunes upgrades your PC or Mac to a premium wireless sound system. Simply plug into any USB port, connect an optional Creative Wireless Receiver to your powered speakers or home stereo system, and play your iTunes or other digital music wirelessly ¿ no cables or networking required. You can add Sound Blaster Wireless Audio ready speakers with built-in wireless receiver and in the future wireless headphones to play music wirelessly in multiple rooms. Plus, Sound Blaster for iTunes features Creative¿s award-winning X-Fi audio enhancement technology that improves the quality of iTunes media, MP3s and movies. Package Contents: Sound Blaster for iTunes USB Audio Transmitter, Audio cable (1/8" to stereo RCA), Installation CD, Quick Start Leaflet.