The 145 has standard two jack audio, with company David Clark headclamps. I can't stand them, the clamping force is very uncomfortable after wearing them for several hours each day. The 145 cockpit has a lot of wind noise as well. When I upgraded I bought myself one of the Bose QC15 noise cancelling headsets and a uflymic and got it TSO'ed. I wish I would have done it years ago. Any noise cancelling headset in the 145 will be a benefit in terms of fatigue and your hearing.