Item Type: AmplifiersAudio Encoding: StereoFrequency Range (Hz): 20Hz-20KHzMaterial Type: AluminumSize: Approx. 11 x 6.6 x 3.9 cmColor : RedItem Weight: 330 gSNR: 90dBDegree of distortion: 0.02(1KHz)Output power: 500W X 2CHAT14.4VDCINPUTSupply voltage: 9-15VDCMaterial: Metal + PlasticsInclude:1 X Mini Amplifier，1X Loudspeaker WireUnit Type: piece