The X-Tube AS301DTS is a vacuum tube USB dongle that allows you to enjoy DTS surround sound on your laptop. Powered by a VIA VT1610 chipset, the device is compatible with Windows XP, Vista or Windows 7 platform. You will also need a pair of AH-516 headphones in order to fully enjoy your DTS experience. Measuring 45mm x 23mm and weighing at 12grams, the X-Tube AS301DTS is priced at 4000 Yen ($44). [Rakuten]