These units have a secret sauce: a built-in 4GB MP3 player, so no other gadget is required. We loved the waterproof design (you can take them swimming) and the wide soundstage. Only downside: a reliance on a computer-connection dock for loading songs. [$100; store.sony.com]
Gear of the Year
The best tools, tech, and toys of 2013.
Plus: Lance Armstrong's Downfall
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