Review on Plantronics 211856-99 Backbeat Fit 3100: Sweatproof and Waterproof True Wireless Earbuds for Active Workouts in Grey by Shannon Taylor

Upgrade from wired headphones, I wanted to find a pair that I could use to control playback while crossing the street or answering a call. And just as important, they didn't fall out. You feel safe. It seems to me that I could comfortably stand on my head in it - provided, of course, that I can do a headstand. The sound quality is good and I like that I can click to pause/resume or adjust the volume. It rained on my first run, but the rain and sweat didn't bother them at all. Then I wore it while cleaning and could use it as a wireless headset for a phone call. They've also done a good job with the Backbeat app. The firmware update was successful on the first attempt. I like the build quality of both the earbuds and the charging case. Nothing about them looks cheap.