Mini HIFI audio power amplifier.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. Made up of aluminum alloy body, thick, feel is also very good. knobs are designed with LED lights tomake the products morebeautiful and beautiful. Specifications: Product name: Power Amplifier Input voltage: DC 12V power: 20W+20W Max power: 200W+200W Channel: 2CH Load impedance: 4-16 : 90 db Frequency: 20Hz-20KHz Distortion rate: 0.01% Material: aluminium alloy colour: black Package Contents: 1 Amplifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.