Generally speaking, boom microphones run counter to the logic that a Bluetooth headset should be as small and discreet as possible, but Joby may have stumbled upon a solution that brings the audio benefits without making the sides of our faces look too ridiculous. The Zivio Bluetooth 2.0 + EDR headset features a small, stylish body just 53.5mm in length and a retractable metal stalk for the boom; when it's fully extended, you're looking at a 137mm long wonder with the mic conveniently placed directly in front of your pie hole. The idea is to maximize the voice to background noise ratio while maintaining some semblance of fashion, and if the actual product holds true to the press shots, it looks like they may have succeeded. Look for an official unveiling at CES next week.