There’s no application to control the EQ, simply just the bodily controls together with a Bluetooth join button, an affect/quantity knob and two for bass and treble. When powered on, you'll want to employ the quantity knob to set a max headroom and modify amount on the fly from https://www.bluetoothspeaker.top/rgb-bluetooth-5-0-speaker-with-stereo-sound-bass-support-tf-card-aux-waterproof-speaker/