What earphones have a microphone in them?

All Active Noise Cancelling Headphones, like Bose and others, have a monitoring microphone in them. Any insert earphone is actually a tiny microphone used in reverse. Nacre Quietpro combat hearing protectors have three microphones in each earpiece - one facing out and two facing into the ear canal. One of the two facing in generates sound appropriately modified to protect the wearer.