2 headsets with aftermarket ANC kits installed, switchable for use in passive mode or with active reduction of background noise, particularly low fequency engine noise. They are fitted with David Clark gel filled ear seals and soft headband pads. Com quality is very good. The boom microphones are original D/C M-7 mics with new foam mic covers.Headsets are used but in very good condition. They are thoroughly cleaned and tested. $200 each or both with storage bag for $350