Is the wireless modules based on the TPCAST?
Was just watching this review https://www.youtube.com/watch?v=ZzK3p0d7GM4
Seems OK, but the guy says the first chinese version isnt as good as the EU version.
Also will we have to purchase a separate powerbank to power the wireless system?
And towards the end of the video, if you need to change the powerbank, you have to restart SteamVR, which isnt good.
My suggestion for this would be to add a built-in capacitor which will allow you, say 5 to 10 seconds to remove one powerbank and attach a second. This would allow you to continue playing longer than 4 hours as stated in that video without having to restart your game.
Or you can have a button on the wireless module which if pressed will turn off the headset screens and speakers and all other non-essential features, and only keep the wireless signal running. This way you can put in a smaller capacitor, or give the player more time to swap the powerbank.