Greetings everyone.
It's been ten days since I bought it, but this headset is really cool. The previous reviews are good, but I didn't expect the headset to be better than what was described.
The mic. is of a good quality and the earphone part is loud and clear in addition to the missing info in the product detail that this set can be modified for right or left ear (Cool, isn't it!) and the cable is about 1.8 m long (practical if you move around a lot during voice chats).
However, I gave it 4 stars only because of the size of the earphone (it's a bit bulky for the ear) as well as the restricted movement of the mic itself (Yes, you can bend it 'a bit' towards your mouth). And for a person like me, the earphone size can be annoying if it's bulky and you have to use it for a long time (~2 hours or more). Of course, you can loose the set's grip around your ear a bit if you want, and the voice quality will still be acceptable and loud enough.
Another tiny problem is how to make it stable on you head/ear. The key to stabilize the headset is to hang it on your ear and fit the earphone inside your ear then move the mic away from your mouth (that's right, AWAY) until it's approximately 5 cm from your mouth. Don't worry about the voice, the mic is really good and with acceptable sensitivity.
I would recommend this headset to anyone, especially if you want a light headset for your laptop bag (or even your desktop PC) to do your VOIP and other calls. It's built from acceptable quality plastic and , of course, it's made in China ;-)