The Turtle Beach Audio Advantage Micro is a USB dongle that adds home theatre style surround sound goodness to any USB computer. Well OK, actually it’s ‘virtual’ surround sound, but who’s counting? $29.95.

‘The Turtle Beach Audio Advantage Micro is a portable USB Audio Adapter with both digital and analog outputs that incorporates a surround-sound simulator for creating an immersive listening experience on standard headphones or stereo speakers.’