So I bought this headset during the last woot-off, and I'm still loving it.
Although my ears are average size, I can never get any earbuds/earpiece to stay in my ear, but this set came with little rubber pieces that I use in addition to the ear clip, and it stays in place perfectly.
The volume is a bit low for my tastes, but that's probably because I always have the AC blasting in my car.
People on the other end of the phone can hear me fine as well, I figured that would be important for you guys to know as well ;p
That extra cord in the picture is actually a headset used to listen to music, like you can clip the headset somewhere and attach the headset, and listen to your music wirelessly.
All in all, I am still satisfied with this purchase, but the only drawback would be how at times, if the other end is kinda quiet, I have to push in the headset to hear them better, but other than that, I say those who are looking for a decent headset should go for it!