There’s no application to manage the EQ, just 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 should benefit from the quantity knob to set a max headroom and modify quantity on the fly https://www.bluetoothspeaker.top/wireless-bluetooths-speaker-portable-music-speaker-bluetooths-with-phone-holder/