Universal Remote Level Controller Bass Knob with Digital Voltmeter
 
Product Details:
NVX Remote Level Controller with Digital Voltmeter
Can adjust the amplifier gain even while driving
In-dash or Under-dash mountable
Compatible with most head units/amplifiers combinations
Rotary push turn ON/OFF knob for amplifier
Digital volt-meter (10V ~ 15.9V)
Blue LED display (high voltage / low voltage)
1-year Warranty from the Original Purchase Date