Headphones are amazingly ubiquitous. They can range from different sizes comfort to noise canceling, to fashions and even wireless bluetooth. Here's an update you won't find on even the biggest brands. RGB NeoPixel LEDs.
This DIY update uses an Adafruit Feather Bluefruit LE module and NeoPixel LED rings to produce lighting effects that are slick.
With The Adafruit Bluefruit LE connect app for Android or iOS, you can change the colors of the LEDs using a color picker and trigger dope animations with the tap of a button.
The 3D enclosures keep together everything and doesn't add much weight or bulk.
Read the learning guide