We look for how isolated the volume controls are. In other terms, when your fingers seek for the buttons, how many do they find? If it’s two, that’s straightforward. A few is similar, just with a play/pause button in the center. But more than that, we have to remember https://www.bluetoothspeaker.top/high-power-bt-speaker-wireless-stereo-subwoofer-music-player-bluetooth-speaker/