old cell phone gaming system

this is an old cell phone gaming system headphones what I'm saying is it is not for a different game system this has a Bluetooth I heard it talk I can't control the volume cuz I don't have a cell phone would do it it has two main switches on both sides the blue light goes on and it says no phone connected and it says battery high so maybe you could understand what it means it has the built-in mic I think the mic actually works if you're into the old stuff like this like old school like I am I'm only asking 40