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