Feature: 1. 7‑band car audio graphic equalizer with variable gain adjustment and high level speaker input, very practical in use. 2. With 6-channel front, rear and subwoofer aux stereo output which enhances your sound experience in the car. That makes sure that your amplifier and speaker receive a powerful but clear signal. 3. Allowed CD-and-Aux (2 channel) input with gain knob to adjust aux sound, also a CD-and-Aux input button could switch flexibly to another mode input. 4. Flexible control as your favor, subwoofer sound control, subwoofer frequency control, fader control, each various Hz control. 5. Strong metal chassis with fine quality rotary knobs for all controls to enhance your tips feeling. Specification: Car audio equalizer, front, rear and subwoofer output, includes mounting brackets and screws for easy installation. Features: 7‑band car audio graphic equalizer with variable gain adjustment and high level speaker input, very practical in use. With 6-channel front, rear and subwoofer aux stereo output which enhances your sound experience in the car. That makes sure that your amplifier and speaker receive a powerful but clear signal. Allowed CD-and-Aux (2 channel) input with gain knob to adjust aux sound, also a CD-and-Aux input button could switch flexibly to another mode input. Flexible control as your favor, subwoofer sound control, subwoofer frequency control, fader control, each various Hz control. Strong metal chassis with fine quality rotary knobs for all controls to enhance your tips feeling. Specifications: Color: black Material: plastics+metal Band: 63Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, 12KHz Item size: 185 * 120 * 30mm / 7.3 * 4.7 * 1.2in Item weight: 517g / 1.1lb Package size: 210 * 135 * 30mm / 8.3 * 5.3 * 1.2in Package weight: 583g / 1.3lb Packing List: 1 * Car Equalizer 1 * Set of Installation Tools Package List: 1 * Car Equalizer 1 * Set of Installation Tools