There’s no app to control the EQ, just the bodily controls together with a Bluetooth join button, an impact/amount knob and two for bass and treble. Once powered on, you need to make use of the amount knob to established a max headroom and modify quantity around the fly https://www.bluetoothspeaker.top/big-power-wireless-speakers-bass-sound-bluetooth-speaker-with-tf-card-aux/