Audio powerhouse Sennheiser and sporting good manufacturer Adidas are extending their joint headphone line with the addition of the CX 680i Sports ($129.95; shown here), OMX 680i Sports ($89.95), and PMX 680i Sports ($89.95) headphones. All three have been designed for use with the iPhone, combining great sound with a hands-free design. They offer a remote and microphone built into the cable, so that you can switch between music and calls with just a push. The CX 680i has an ear-canal design, the OMX 680i an ear-clip design, the PMX 680i a neckband design, and the original MX 680 an earbud design.
All four models in the Sennheiser/Adidas line are equipped with Sennheiser’s moisture protection system. This not only protects them from sweat and rain, but also allows them to be rinsed under the tap for easy cleaning.
Get a sound advantage, gamers, with the 
If you tend to travel with your phone or Bluetooth-enabled music player and spend much more time listening to music than you do placing or receiving calls, 
Imagine if you could switch between your PlayStation 3, XBox 360, and your Wii or other game console seamlessly without having to remove your headphones to hear the audio, or in some cases even to talk smack with the friends you’re gaming with. That’s what the new 
