Joy-Cons, they are junk items. Neon blue, left side. Wireless communication mostly doesn't work well. You can operate them when attached to the Nintendo Switch console or a controller. You can't play with the Joy-Con alone. The stick malfunctions and moves on its own, but it can be fixed by pressing the stick. I used it like that for a while without worrying about it, but I bought a new one, so I'm selling this one. It works properly except for the above description. Please consider this if you are looking to use it for repairs. Thank you.