Very convenient feature On/Off Amplifier Switch, you will be able to connect the remote wires from your amplifier to the Gain Control and conveniently turn your amplifier On and Off with a simple continuous hold click on the level knob
As if that was not enough, can offer you even more. Besides the bass knob, voltmeter, and remote on/off features, the Gain Control can also be used as an audio input converter for car audio factory players that do not support RCA connections.