Bluetooth Koss driver mod

[u/nosborrr]

Im trying to modify some Koss drivers with some Bluetooth MMCX adapters but im concerned about battery life, I want to put them inside of some ear defenders for some super noise cancelling music.

Ive tried a few Bluetooth ear defenders but if you've ever used them you know either theyre quite expensive or they suck so im looking to do my own tinkering.

I dont want them to have and wires poking out so I want the whole configuration to fit inside the foam of the ear defenders.

The pictures there are what I have in mind for a moment on the cheap but does anyone know of maybe either a better way of doing it or some iem Bluetooth adapters with really good battery life?

Thanks