jack

I will keep this simple: does anyone know how the type of connector on the bluetooth chip is called?

So I have two unrelated questions. 1. I'd like to add 4 3.5mm jacks to a cube. I have 5v amp. Wiring I assume is easy enough, just 4 pots and jacks in parallel but I'm a bit hung up on what jacks and pots to use. I'm pretty confident I can just use standard 3 pin headphone jacks just fine, but...