Researchers at Cornell University have printed the first 3D-printed consumer electronics device. What is it? A loudspeaker! The team joined 3D printing and music in 3D harmony. Every part of the speaker was made using the printer-even the electrical wiring. The team said the sound quality might not be ground-breaking but it is “decent.” And it has major implications for the future, where what you might order off Amazon, you could maybe one day print right at home from your desktop.