After more than 30 hours of research and testing 11 different headsets, the Jabra UC Voice 550 Duo is our pick for the best USB office headset. It’s comfortable enough to wear during even the longest conference calls thanks to soft, well-padded earcups that don’t put pressure on your ears, and it has the best sound quality for voice calls of all the models we tested but still allows you to hear what’s going on around you. The noise-canceling mic filters out background noise so you won’t drive your callers crazy, and when you don’t want to be heard, the easy-to-use mute controls were among the quietest and most discreet we tried. It also features an easy-to-position mic boom, which combines rigid plastic with a more flexible wire tip. If your day at the office consists of frequently switching between calls and your mp3 collection, Microsoft’s LifeChat LX-6000 remains a very good option—it was our previous pick, and it’s currently a few bucks cheaper than the Jabra. It’s heavier than our main pick but also has a fuller sound profile that is better for music, while voice calls still sound great.