Features:* 7-band EQ range, adjustable from -12 to +12 dB. The subwoofer frequency range is 30 Hz to 120 Hz.* Powered by a 12-volt battery with 6- front, rear and subwoofer auxiliary stereo outputs to enhance your solid in-car experience. This ensures a strong and clear signal to your amplifiers and speakers.* Allows CD and AUX input (2 s) with gain control to adjust auxiliary volume, CD and AUX input ons can flexibly switch to different input modes.* Flexible control, subwoofer volume control, subwoofer frequency control, fader control, per Hz control.* This car equalizer comes with a 12V DC power supply. Plus, a sturdy metal chais and high-quality knobs are available for all controls to improve your ing.Specification:Name: Car amplifierMaterial: MetalRated voltage: DC 12VOutput line: six- (four-way amplifier, two-way subwoofer),Input line: CD 2 external AUX inputSize: 18.5*12*3cmColour: BlackPacking included:1 x Car amplifierNote:1. Due to manual measurements and slight color variations, please allow 1-3 cm (0.4-1.18 inches) difference to suit different display settings.2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.