Used Bose A20 Headset, dual plug, over ear, noise cancellation. In excellent condition. Currently $1095 on the Bose website and other similar sites. No matter why you fly, the Bose A20 Aviation Headset is engineered to improve the experience. It provides acclaimed noise reduction and clear audio with active equalization. Plus, a comfortable fit with minimal clamping force that makes even your longest flights more enjoyable. Features for this model include a high-performance electret microphone with a Bluetooth audio and communications interface, wired audio input, customizable audio prioritization and intuitive operation for plug-and-fly convenience. 30% greater active noise reduction than conventional aviation headsets 30% less clamping force than conventional aviation headsets Clear audio with active equalization Now with Bluetooth audio and communications interface for connectivity with your communications and navigation devices Customizable audio prioritization control lets you mute an audio signal when receiving a communication, or mix the two together