We seek out how isolated the volume controls are. In other terms, when your fingers look for the buttons, how many do they find? If it’s two, that’s simple. 3 is similar, just with a play/pause button in the center. But more than that, we have to recall where https://www.bluetoothspeaker.top/speaker-bluetooths-wireless-speaker-hifi-subwoofer-bluetooth-speaker/