Approx $30 +/-
you need:
standard WSA2 puck
over the ear h/f's w/ 1/8" input
Deus2 h/f adapter
1/2" #2 gun screws (4)
small drill bit
epoxy
I used (no affiliation):
cheap BT h/f's w/jack input
Deus2 puck adapter plate
1. carefully epoxy screws into adapter plate (wait til dry) NOTE: Pic...