Digital Car Stereo Radio Bluetooth Head Unit Player In-dash MP3\/USB\/SD\/AUX\/FMSpecification:Radio size: Approx. 18.7x11.4x5.8cm\/ 7.36x4.49x2.28!#!amp!*!quot;Remote size: Approx. 8.5x3.9x0.6cm\/ 3.35x1.54x0.24!#!amp!*!quot;Entire:SNR: 65dBFrequency response: 20Hz~20KHzOutput: Audio outputTone control: Bass 100Hz、 Treble 100HzPower amplifier:Output: Loudspeaker outputLoudspeaker impedance: 4~8!#!amp!*!Omega;Maximum power output: 4x55WSmall power output: 4x50WFM:FM frequency: 87.5MHz~108MHz(EU)、 87.5MHz~107.9MHz(USA)Terminal antenna: External antenna connectorMedium frequency: 10MHzSensitivity: 22dBSNR: 60dBDistortion(1KHz): !#!amp!*!lt;1%AM(Optional):Frequency response: 522-1620KHz(EU)、 530KHz-1710KHz(USA)IR range: 450KHzUsable sensitivity(-22dB): 25dBPackage Included:1 x Car Stereo Audio MP3 Player1 x Remote1 x Cable1 x English User's Manual