Multichannel bluetooth solution

Hi!

I'm looking for a way to transmit 10 channels from max to 5 wireless headphones (so 2 channels each). It is for an installation project wherea maximum of 5 people will be walking around the exhibition space, so no wired solution works unfortunately. I can't find any information on how to connect to a bluetooth stereo output in max, let alone 5. My current solution is to output from a 10 channel sound card to the headphones via audio-to-bluetooth converters but I'm hoping:

- there is a simpler solution,

- that it's possible to connect bluetooth headphones to Max directly.

Thank you!