So you want to upgrade your existing pair of headphones with Bluetooth controlled NeoPixel LEDs? Adafruit has a guide for you. The Adafruit Bluefruit LE Connect app for iOS or Android lets you change the color of the LED rings and trigger animations.
More items like this: here
You are going to need a Adafruit Feather 32u4 Bluefruit LE and a smartphone for the app to get started. The guide is available here.
*Disclaimer*Our articles may contain affiliate links. As an Amazon Associate we earn from qualifying purchases. Please read our disclaimer on how we fund this site.