Kinter MA-180 MINI USB Port Charging Power Amplifier for Car Computer Motorcycles<br /><br />Features:<br /><br /> RCA input\/output socket.<br /> Treble, Bass, Balance, Volume control.<br /> Power switch, with USB port for MP3, MP4 charge.<br /> High-quality cars\/motorcycles\/computers\/audio amplifier.<br /> 7 LED light for Volume Control, three sound mode change-over switch.<br /> <br /> Specification:<br /> <br /> Material: Aluminum<br /> Frequency: 20Hz-20KHz<br /> Input Impedance:47K<br /> Input Sensitivity: 0.25mv-50mv<br /> Input power: 12 Voits-5 Amps<br /> Output power: 20w max-R.M.S 10w<br /> Speaker Impedance:4-16 ohm<br /> Total Harmonic Distortion: &amp;lt;0.4%<br /> SNR(Signal\/ Noise Ratio): -100db<br /> Size: Approx. 15.4cm x 7.2cm x 4.1cm\/ 6.06&amp;quot; x 2.83&amp;quot; x 1.61&amp;quot;<br /> <br /> Package Included:<br /> <br /> 1 X Amplifier Power