Features: Enhances your car auditory experience with the DSP chip of the MF80.4 Power Amplifier to significantly improve sound for wide systems. Featuring four channel auditory processing and customizable sound, this aluminum device ensures precise tuning and strong compatibility with a variety of vehicles. For music enthusiasts, car audiory modification hobbyists for superiorsly sound. Perfectly for long drive, daily commutes, or road traveling, allowing you to enjoy exceptional auditory performances in any driving scenario. Elevates your in car entertainment system with this advanced auditory processor,for best in automotive sound technology. Specifications: Model: DSP chip MF80.4 Power Amplifier Size：about 14.5x9.5x4.50cm/5.71x3.74x1.77in Component：Aluminum Voltages DC10.5V-14.8V Power 4x80W to 4x100W Most Noise ratio：about 95dB Impedance：4Ohm Package Includes: 1PC DSP chip MF80.4 Power Amplifier note: Please allow 0-1cm error due to manual measurement. please make sure do not mind before bid. Due to difference between different monitors, the picture may not reflect the actual color.