Audeze today announced its latest gaming headset, the Maxwell. The closed-back headset can be used wired or wirelessly (via Bluetooth 5.3) and features 90 mm planar magnetic drivers. The microphone is a detachable cardioid designed by Shure.https://www.notebookcheck.net/Audeze-announces-Maxwell-gaming-headset-with-Bluetooth-5-3-and-90-mm-planar-magnetic-drivers.673522.0.html
That's cheap for an Audeze, but I still question how a planar of that size could be properly driven wirelessly.