While I love the mic sensitivity, noise DSP and small size, this item has a major design flaw in that the physical connection from the earbud to the main unit constantly falls apart. The connect point is very delicate, with just a couple tiny plastic flanges to connect the earbud to the main unit. While Plantronics is usually very good, this one was a big miss - look elsewhere.The Aliph Jawbone looks interesting, and that's where I may be headed next.