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