What’s better than a regular pair of headphones? Probably one that lets you express yourself through its LED rings. Adafruit has published a guide that shows you how to build your own smart LED headphones. You are going to need NeoPixel LED rings, an Adafruit Feather Bluefruit LE module, and a smartphone to run the Bluefruit LE Connect app.
You will also need a 3D printed enclosure to keep everything together. More information is available on Adafruit.