258378 Brand:SUOER Model:SON-8251B Quantity:1 piece Color:Golden Material:Aluminum alloy Amplifier:Class B Function:MP3 Player Frequency response:20~20000 Hz Number of Channels:2 Input Power:180W Peak Power Output:180W + 180W RMS Power Output:180W Input Sensitivity:16dB lnput Impedance: 47K Signal To Noise Ratio:90 dB Slewing Rate:85% Input Voltage:12V Speaker Impedance:4~8 ohm THD (Total Harmonic Distortion):<1% Interface: Audio， MP3， VCD / DVD， DC 12V power Remote Control:Yes Application: car Other Features: With little distortion， the output dynamic characteristics， sound sweet; Overheating， overload automatic protection; Suitable for home， computer， car， motorcycle and outside use Packing List: 1 x Amplifier