I don't know about cheap. I've always been under the impression that you really do get what you pay for. If you are looking for a good bluetooth ear piece, the Jawbones (though not cheap) are by far the best when it comes to functionality. IMHO it filters out wind and other background noise, keeps the sound and mic clear, and is a great piece of hardware. FYI, I worked witha cell phone recycling Co. for a while and was able to play with many devices, I was most impressed when comparing all products. On the other hand, if inexpensive is your goal (with good function) MOTO, good solid Product, not quite the tech advantage.
-Just an opinion