An above average headset for the price made totally non-functional by a ridiculous in-ear design. I totally agree with the other reviewers that couldn't keep this from falling out, even after considerable effort and experimentation.  Supposedly there is an optional ear loop that you can BUY from Samsung....should be included (and I couldn't find), but not sure how even that could work with the design.  I'll bet the next one is designed different and hopefully will also tweak-out the echo. That could be worth consideration  because the audio quality/size/price has potential.