AK270 Mini Audio 2-Channel Stereo Power Amplifier Portable Sound Amplifier AUX Input Speaker Amp for Car and Home Low distortion supplies a clear, strong and more powerful sound. Large knobs are designed with blue LED lights to make products more beautiful. audio amplifier. Two main channel output. Left and right channel outputs are interfaces for speakers. Made of aluminum alloy body, thick, light weight and practical. Note: Package without battery and plug(for amplifier), you need to prepare your own -supply. Specifications: Item size: 125 * 105 * 42mm / 4.9 * 4.1 * 1.7in Item weight: 150g / 5.3ounce Input: RCA dual channel input with 3.5mm AUX input Package weight: 225g / 7.9ounce Color: black Package size: 130 * 110 * 50mm / 5.1 * 4.3 * 2.0in Distortion rate: 0.01% Material: aluminum alloy Load impedance: 4-16 Frequency: 20Hz-10KHz : 20W * 2 SNR: 85db 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. Packing List: 1 * User Manual 1 * Amplifier Low distortion supplies a clear, strong and more powerful sound. Large knobs are designed with blue LED lights to make the products more beautiful. Left and right channel outputs are interfaces for speakers. Mini audio power amplifier. Two main channel output. Made of aluminum alloy body, thick, light weight and practical.