There’s no app to manage the EQ, basically the bodily controls together with a Bluetooth be part of button, an affect/amount knob and two for bass and treble. When powered on, you need to utilize the amount knob to established a max headroom and modify amount to the fly https://www.bluetoothspeaker.top/powerful-wireless-speaker-subwoofer-party-box-music-bt-speaker-wireless-waterproof-with-battery/