Features: 1.R.M.S.:2X26w 4Ω 2.WITH REMOTE CONTROL 3.MP3 PLAYER. 4.BASS/TREBLE CONTROL:+/-10db 5.FREQUENCY RESPONSE:40Hz-16KHz 6.TOTAL HARMONIC DISTORTION:<0.5% 7.SIGNAL TO NOISE RATIO:≥80dB 8.POWER INPUT:DC12V-14.4V 5A 9.SPEAKER IMPEDANCE:40HMS TO 80HMS 10.FM：87.5MHz-108MHz 11.INPUT SENSITIVIT:0.25MV-220MVPackage Included:1 x USB Stereo Amplifier2 x Cable 1 x Remote control