Bio-feedback is starting to be covered by insurance companies and various health care plans....as you can see, places are wanting to sell sensors to places that make various products....http://angelsensor.com/
a) the only bone conducting stereo headphones with more than 2 transducers is this one......note how they are almost to a million dollars.....the money they raise does NOT give up equity,

instead people get products at a discount.....it’s a form of crowd funding were looking into doing after the entitlements....https://www.kickstarter.com/projects/ostrich-pillow/batband?

b) we’ve got other links we need to find in our "history" like the place in San Diego with the cap and DARPA grants.....plus more imaging links of many kinds.....you get the idea!

c) Bio-feedback is starting to be covered by insurance companies and various health care plans....as you can see, places are wanting to sell sensors to places that make various products....http://angelsensor.com/