If you can avoid using wires when you connect AV or computer devices each others this is a good. But if you can do that for reasonable money this is a really good. The $36 Plugable Wireless Audio Kit gives us such possibility. It includes two parts – USB transmitter, connected to the PC, and receiver, connected with speakers. The transmitter is supported in Linux, Windows and Mac OS X without installing additional drivers. Using standard 2.4GHz radio frequency gives up to 50 meters range between audio source and speakers within line-of-sight distance or up to 10 meters with obstacles in between.
The receiver can work with one AAA battery or power adapter (selling separately for $14.99). Demo video with setup instruction is available below.
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