2.1 Channel Audio Output: 2.1 channel output 20W2(L/R)+40W(sub), capable of driving most home, car, marine, and outdoor passive speakers and subwoofers with excellent sound performance. Low distortion delivers clear, strong, and powerful audio. Perfect Design: Equipped with standard stereo RCA and 3.5mm AUX inputs, compatible with iPad, mobile phones, MP3 players, CD players, TVs, computers, and other audio devices. Includes master volume control, treble and bass adjustment, with dedicated bass volume control for enhanced sound customization. Bass, Treble, and Volume Adjustment: Features responsive power switch buttons and rotary knobs for precise master volume control, allowing personalized sound settings. Compact Size: Sleek and compact design with a durable matte silver finish. Space-saving and easy to install in cars, marine vessels, or other vehicles. Simple and convenient operation. Application: Operates on DC 12V power, suitable for use in cars, boats, RVs, golf carts, homes, and other locations requiring a reliable amplifier with low distortion and accurate sound reproduction. Package Includes: 1 x Power Amplifier 1 x User Manual