The Bose A30 aviation headset with Bluetooth features a lightweight design with low clamping force. A full-sized around-ear headset with 20% less clamping force than the Bose A20 Headset. Toolless, side swappable boom mic with straight cable that can be mounted on either side of the headset without tools. Active noise cancellation with three selectable modes to accommodate nearly any environment or personal preference. Comes with 6-Pin LEMO plug.