Jabra has been venturing further and further into headphones after years of focusing on headsets and speakerphones. CES 2013 is a perfect mirror of that shift: all three products it's launching at the show are geared towards music lovers rather than plain old conference calling. The Revo and Bluetooth-based Revo Wireless (above) both integrate Dolby Digital Plus audio processing and, along with a companion app for Android and iOS, may eke out more detail than usual from compressed songs. These and the in-ear Vox (after the break) are a