In addition, Oculus will release CAD files for the design of their detachable headphones, so that anyone can make headphones that attach directly to the headset. CAD files for the removeable facial interface were also announced at the same time. Previous to this however, Audeze had shown a pair of earphones connected to the Rift directly, which,
according to Engadget, was made possible with help from Oculus. That exchange was most likely the first successful attempt from Oculus to test the CAD design for a real third party product, allowing for them to finalize their decision to release the blueprints, so that any company could start making headphones for the Rift.