400 Watt 2 Channel Car Amplifier Powerful Stereo Audio Power Amp HiFi Bass Home Product Features: 20W+20W 2CH Output: 20W+20W RMS mini amplifier, the max power out can reach to 200W+200W, providing much better sound quality and shocking auditory effects. 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. Two Main Channel Output: Left and right channel outputs are interfaces for speakers or speakers.Low distortion supplies a clearer, stronger and more powerful sound. Compact Size: Made up of aluminum alloy body, with blue LED lights for the large knobs, the compact bookshelf speaker sound amplifier features a mini compact size (4x3x1.6"/ 105x75x41mm), easy to bring anywhere it is needed. Application: Compatible with a variety of digital products, it can automaticly search and support FM radio frequency. It's perfect for your karaoke and home theater acoustic sound system and cars, motocycles or boats sound system applications. Note: For home use, you need to match 110-240V to 12V power adapter (not included) Product Specification: Product name: Power Amplifier Color: Black Material: Aluminum Alloy Input voltage: DC 12V RMS power: 20W+20W Max power:l 200W+200W Channel: 2CH Load impedance: 4-16Ω SNR: 90 db Frequency: 20Hz-20KHz Distortion rate: 0.0001 Size About: 125 x 75 x 40mm(L*W*H) Package Included: 1 x Power Amplifier 1 x User Manual