1.Hi-Fi Stereo Audio Amplifier 2.Enjoy powerful and clear sound quality in your car audio. Using this amplifier, you can adjust the volume, bass and treble of the song you are listening to. The amplifier has stereo input ports for left and right speakers. 3.The total volume is adjusted with LED light ring, which is more colorful to use. 4.The size is mini and small, it is more convenient to carry and put in the car. 5.Automatic anti-interference function, avoid the interference of many external noises, and the sound is clearer. 6.Treble and heavy bass, a variety of volume can be amplified, and the range of uses is extremely wide. 7.Aluminum alloy material, longer service life, not easy to damage.Colour: BlackMaterial: aluminum alloyRated voltage: 12-14VRated power: 20W+20WRated frequency: 20-20KHZResolution: 47KDistortion rate: 0.01Signal to noise ratio: 90DBImpedance: 4-46 ohmsPower amplifier type: HIFI power amplifierInterface type: clipProduct List1x power amplifier+1x manual