Don't know if it would work, but the one I bought can be set to transmit or receive.
I set it to transmit the Bluetooth signal to my headset. Possibly a second one could be used to receive the signal. There is a stereo mini jack on the unit to plug in a headset. You may want to check out the specs. The problem I see would be how to pair these.
For my use, I just pair the headset to the transmitter, plug the line in to the transmitter from the board and I'm done.
I was going to use my wife's Dr. Dre headphones but thought I would be a dead man when I lost them. I have
a cheaper set of headphones I got on Amazon ($70.00) that are wireless Bluetooth that work pretty well.
Agree, the delay may be bothersome since I will hear some bleed from the mains. I hope to overcome this with
some volume and the closed back headphones. It may be impossible..so I have to check it out this weekend.
If it's a big fail, I won't be too upset since the parts were actually bought to use on my tv at home and using them on the DL was an afterthought. I have used regular wireless Sennheiser headphones with the DL before and they work okay, no issue with delay or distance, just not enough volume and they let a lot of audience noise in.
A big part was the "disguised " ear protection. No one really pays much attention to me when I'm wearing buds or phones since they see me around the stage and with the mixer. Pretty much once the mix is where I want it the rest of the night is smooth sailing other than doing effects and watching for IEM looks of desperation from the stage.
TaoTronics Bluetooth 4.1 Transmitter / Receiver, Wireless 3.5mm Audio Adapter (aptX Low Latency, Pair 2 At Once, For TV / Car Sound System, Volume Control)