This headset is all that can be expected for such a cheap price.
It works with the major chatting software services but offers nothing in the way of additional features.
It has mediocre sound quality, however when combined with a bad internet connection if talking over Skype or Yahoo, it can result in a very strained conversation as muffling seems to occur quite frequently. as it is only a sigle earpiece, the other uses for this product are limited. Needless to say, it does not handle very low or high tones very well. However, in optimal conditions, the sound quality is at the very least passable.
My main gripe with this is that the ear holder seems to be slightly off-form, and as a result can be rather uncomfortable to wear. The top part of the loop has a small bump which I imagine is to ergonomically provide stability, but I have found that its only use is to dig in the top of the ear, then slowly slide across causing the mouthpiece to drop every 5 minutes or so. Furthermore it may not fit onto a smaller ear easily and I can see it frequently falling off.
I would recommend this headset only as a cheap and temporary product, or to those who will not use it often and so do not want to spend much. Anyone who wants to spend more than an hour in conversation better invest in much better comfort and sound quality too!