Here’s an easy way to attract our attention: Print a DTS (Digital Theater Sound) logo on the side of a glass device that looks like an old-fashioned vacuum tube. The pitch goes like this: Plug X-Tube into your laptop’s USB port, install the special “DTS Headphone Deck” software, and when you plug in the included headphones, get sweet DTS surround sound from your laptop. But wait just a doggone minute. Doesn’t this $45 product look a lot like that fake vacuum tube USB plug we showed you last June, which merely turns a USB port into an headphone/microphone jack? Its [...]

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