Pros Cheap POS !!!
Cons Terrible deafening hum
Summary Terrible deafening hum makes this totally useless if you have to use it for long periods of time or if the call your on has a bad connection and you have to turn your volume up. Even then with the volume all the way up you have to struggle to hear the person your talking to over the feedback this thing makes. Not even worth 1/2 a star just totally useless.