This project was made so that you could make binaural recordings which are recordings that are very realistic sounding. These recordings are only realistic sounding because they are recorded in a similar way that people hear sound. Also these recordings are only realistic sounding when listening with good headphones. If you like this check out https://www.shapeways.com/shops/marchdesigns An example of binaural recording is: https://www.youtube.com/watch?v=itLxXeyM2aM (this is not my video) First: Print the parts Settings: for the ear and side parts make then 25% hollow or more (quanity)partname (1) main_body.stl (1) top.stl (2) side_parts.stl (1) nut_holder.stl (1) thumb_screw_top.stl (1) ear_left.stl (1) ear_right.stl Second: Buy Parts (2) 1/4" nuts (1) 1/4" hex bolt (1) stereo microphone http://www.azden.com/products/microphones/lapel-microphones/ex-503/ (similar ones were used, two of them wired together to stereo) Optional: cotton balls Third: Assemble (should be easy) Glue a 1/4" nut in the bottom of the main_body Glue a 1/4" nut in the nut_holder Glue the nut_holder in the main_body at the top Glue the thumb_screw_top to a 1/4" hex bolt Glue the ears onto the side_parts (the angle of the ears should be close and the holes should line up fairly close too) Feed microphones into the main_body Insert microphones into the side_parts left mic with left ear ect. Insert side_parts into main_body Optional: fill main_body with cotton balls Put the top on the main_body Insert the screw through the top and tighten (not too tight)