Majority of headsets have WORKING AUDIO but nonfunctioning microphones. 

Headsets include all earpads.

No physically damaged headsets except for one.

About 1/3 of the headsets have their microphone. (they are detachable)

A few headsets have 100% functionality but the switch for Power/Pairing doesn't function correctly. (gets stuck on pairing mode or powering on)

No dongles included.

No returns accepted.