Looking for a very specific headset

Hi all,

Not sure this is the community to ask in, but I couldn't think of anywhere better.

I kind of hate switching headphones when I'm on my computer, so I wanted to find a wireless headset that sounded decent enough that I could use for music while working, but I have some very specific requirements:

• Open backs
• USB wireless (not Bluetooth)
• Decent audio quality
• Reasonably compact

Does such a product even exist? Ideally, it would also have swivelling earcups, so it can fit nice and flat in my backpack when I'm on the go.

I currently have a Philips SHP9500 paired with a cable that has a built in microphone. With this setup music sounds good, and my voice sounds good to other people, but it's neither wireless, nor compact.