The file 'IPod Classic 4 Bluetooth Mod Pair Button 3D Printer Model' is (stl) file type, size is 3.8KB.
This is the pair button i used for the bluetooth ipod classic 4th gen mod i did. I would recommend printing it in a transparent colour and mounting an LED near it so you can tell if the headphones are paired or not.
Please see my youtube video for how to install it.
classic_4_button_2-Body.stl | 19.2KB |