• People seem to agree that existing wireless headphones are not the audiophiles' answer.
• WUSB (Wireless USB) allegedly allows you to use an USB device (in our case a portable, USB-enabled HP amplifier) without a cable between PC and device.
• Conclusion: we now have a wireless headphone with perfect (as perfect as USB as such allows...) transmission quality.

Since I have not found any mention of this idea, it is probably stupid or at least not practically feasible...

Has anyone tried? Could this work?

Well, I guess it could work if it has proper error correction. There may be lag for time-sensitive content like games though.

The main problem with wireless headphones is that in order for them to really sell the wireless concept, there has to be no wires coming out of them. This means the wireless receiver, DAC, and power source have to be in the headset itself, and there's not much room there. It also makes open headphone designs (which generally are considered to sound better) unfeasible.

I guess you could have a setup with wires coming out of the headphones to an AC powered device that receives the wireless USB signal, but then I don't really see the point unless you just can't run that wire from the transport to the DAC.

I have a wireless USB device called the WiRanger. I have tested it with audio to 24/96 and it works perfectly. Adds jitter just like any other device, but works perfectly. If you are interested email me. I'll sell it cheap.

wireless USB works relatively reliably for everything but file transfer. There is a standard for it as well, its just not very good.