This audio amplifier is small in size and easy to operate, you can use it at home, and carrying it to your car is also very convenient.Features:It is a mini power amplifier for 2.0CH speakers.With LCD display, backlight design.All aluminum, the surface of machine made by wire drawingoxidation process.Adjust the high and low frequency separately, let you find your favorite frequency band. The whole machine is all metal body, spraying fine sand anodized black to show the texture.Can read U-disk and memory card, plug and play, Supports BT wireless connection.Treble, bass and volume adjustment buttons for easy operation.Left and right channel output, rated power 40W + 40W.Specifications:Color: blackMaterial: aluminum alloyPower: 40W * 2Load impedance: 4-16SNR: 90dbFrequency: 20Hz-20KHzDistortion rate: 0.01%Remote battery: CR2025, 3V, 150mAhItem size: 155 * 85 * 45mm / 6.1 * 3.3 * 1.8inItem weight: 300g / 10.6ouncePackage size: 165 * 135 * 50mm / 6.5 * 5.3 * 2.0inPackage weight: 350g / 12.3ounceNote:Package without battery and plug(for power amplifier), you need to prepare your own power-supply.Packing List:1 * Power Amplifier1 * Remote Controller1 * User Manual