Product Feature2.1 Channel Audio Output: 2.1 channel output 20W2(L/R)+40W(sub), can drive most home/car/marine/outdoor passive speakers and subwoofers, and with unrivaled sound superiority. Low distortion supplies a clearer, stronger, and more powerful sound.Perfectly Design: With standard stereo RCA and 3.5mm AUX inputs, can be perfectly compatible with ipad, mobile phone, MP3, CD player, TV, computer etc. Besides main volume control, treble & bass control, bass volume control is specially designed, easy to enjoy music of high-quality.Bass & Treble & Volume Adjustment: Features crisp responsive buttons for the power switch and rotary knob control for the master volume adjustment. it can be adjusted according to your needs.Compact Size: Complete design with exquisite appearance, matt silver case looks fashionable and durable, unique structure design easy to be installed in car / marine, save space and convenient to operate.Application: DC 12V input suitable many scenarios, can be used in your car, your boat, your RV, your golf cart, your home anywhere you need a great amplifier with low distortion and acoustically accurate reproduction of music. Package Included 1 x Power Amplifier 1 x User Manual