There’s no app to manage the EQ, simply just the bodily controls together with a Bluetooth sign up for button, an impact/amount knob and two for bass and treble. As soon as powered on, you must utilize the amount knob to set a max headroom and modify amount on https://www.bluetoothspeaker.top/high-power-loud-big-bluetooth-megaphone-bullhorn-rechargeable-battery-portable-speaker/