Dash mount amplifier level control for volume adjustment with Blue LED display (high voltage/low voltage) can adjust the amplifier gain while driving perfect for Balancing the system to change music styles comes with mounting Bracket mountable in-dash or under-dash works with most head unit/ amplifier combinations.

Specs:

• RCA Line level control with volt-meter and remote Amp trigger.
• Can Adjust the amplifier Gain and Turn On / Off the Amp.
• In-Dash or Under-Dash Mountable.
• Rotary push turn ON/OFF Knob for Amplifier Remote.
• Digital Volt-Meter (10V - 15.9V)
• Blue LED display (High Voltage / Low Voltage)
• Compatible with most head unit and amplifier combinations
• Dimensions 3.23"x 2.95"x 1.06"