We try to find how isolated the volume controls are. In other words, when your fingers look for the buttons, how many do they find? If it’s two, that’s straightforward. 3 is similar, just with a play/pause button in the center. But more than that, we have to recall https://www.bluetoothspeaker.top/3d-surround-party-gaming-wireless-subwoofer-speakers-bluetooth-professional-bass-speaker/