Stereo headphone mini-plug. Continuing with the theme of connection from a couple of days ago - though it might also represent separation, since the headphones aren't plugged in, and when they are, they tend to isolate rather than connect me to others.
Ah, yes, headphones do isolate, don't they? Great drawing ... and post.
This is fabulous. I love how you are able to make poignant art out of such benign, everyday objects. Beautiful compositions with perfect simplicity.