Ew. I hope they supply tips.
So they’re wireless headphones.
If they can somehow output to bluetooth from their sound system then there are neckloop products that can receive the bluetooth and then use the neckloop to transmit to your telecoils. All mono unless you use the ear hooks version. Or maybe your HA’s have bluetooth. Or maybe there’s an mfi broadcast system for facilities to be able to go to mfi HA’s. Or use the HA manufacturer proprietary remote mic/connect clip thingy and place it near an audio speaker. Or an mfi device that you might have up there.
@d_Wooluf: I agree that they’re not at all widespread. They should be. The beauty of the loop to telecoil method is the simple broadcasting and the discrete reception. Bluetooth is still one to one but certainly the same discrete reception. Unlike the headphones in the pic from Deaf_piper. Who knows what the future brings.