First off, THIS UNIT IS LOUD!The big bonus with this headset is the VOLUME. I am very hard of hearing and even I turn the headset volume down.I had three other headsets and this one is the most comfortable one of them all.The clarity of the callers voices is excellant. I would of given five stars but my voice is not as clear as I would like it to be. I would add though, that I have a very large head, so the distance from the mic to my mouth is probably the issue.I use this for both my cell phone and my PS3 (Thank you multipoint technology!) Great value.