There are many good controls on the highest of the speaker �?power on/off, Bluetooth pairing, play/pause and volume up/down �?in addition a cutomizable ‘shortcut�?button far too. The chart underneath shows the maximum output for our current speaker recommendations, plus some other models we’ve tested. For more aspects, see our https://www.bluetoothspeaker.top/bluetooth-speaker-with-wireless-subwoofer-led-light-bluetooth-speaker-karaoke/