Pinkey The Pron What Is This Black Thing The Size Of The Top Of My Pinkey Finger That Hooks Up To The Comp With A Looooong Wir?

What is this black thing the size of the top of my pinkey finger that hooks up to the comp with a looooong wir? - pinkey the pron

I found it ... with a little glue on the floor Bottome, is black and the superior articular sixe my Pinkey. I think I see something (flashing red on them, they are called ultra-violet or what?) When in exchange for a corner. that plugs into the headphone and microphone. Any clues?
Thank you!