The microphone is unusable in gaming since the audio quality drops severely.
The A50 has inferior bass and distortion, but is a good wireless headset with microphone.
The Penrose is a better wireless headset and the microphone works properly unlike over Bluetooth.
7.1 surround on the headphone side is dead. Everything will be done at the source going forward, so you need only a stereo headset.
Ok thanks for the info. How well does the Penrose deal with spatial sounds? The Mobius has the 7.1 setting which I use most of the time and find pretty good and clear compared to my SteelSeries wireless. I'd hate to give that up.