Added AUX3.5mm audio interface. 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.<br><br>Large knobs are designed with blue LED lights tomake the products morebeautiful and beautiful. Product name: Power Amplifier Current requirement: above 2A Output power: 20WX2 Product power port: 2.1X5.5mm Channel: 2CH AUX:3.5mm Load impedance: 4-16ohm SNR: 90 db Frequency: 20Hz-20KHz Distortion rate: 0.01% Colour:black Material:aluminum alloy<br><br>Package Contents: 1 x Power Amplifier<br><br>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.