Brand SUOER Model SON-8251A Quantity 1 piece(s) Color Blue Material Aluminum alloy Amplifier Class B Function MP3 Player Frequency response 20~20000 Hz Number of Channels 2 Input Power 150W Peak Power Output 150W+150W RMS Power Output 55W x 2 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) 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