Sennheiser HD 450BT

Bought 1,5 years ago with the intent to use it as a general headset for gaming and to use it on airplanes when flying. But shortly I ended up using one with a boom microphone for the former, and an in-ear set for the latter - as I travel as light as possible. My main problem with this device is the lack of a mute button. Also its noise-cancelling is far from a Bose QC's; that shows in their price difference I suppose.