Features:- Support advanced audio transmission mode.- Built-in high sensitive FM tuner.- SD card front loading slots.- Front USB and AUX input.- Blue color illumination.- Remote control.- Control knob.- Time code display.- Digital clock.- Support three-band radio store FM1 - FM2 - FM3， can preset 18 radio stations (Radio frequency: 87.5 - 108MHz).- Support USB / SD / MMC card reader.- Radio FM frequency only (no AM) preset station.- Support audio: MP3 / WMA audio format playback.- Support break point memory.- Rotary electronic volume control.- MP3 play supports pause / preview / repeat / random play and 10 tracks up / down selections.- Electronic type bass / treble， left and right balance， front and back balance， volume control.- Multiple EQ scenario mode choice: jazz， rock， pop， classical， etc.- Support mute and equal loudness control.- Front AUX audio input hole and rear terminal L / R audio RCA output hole.- 4 track high-power output (4 high-power loudspeakers) 60W x 4.Specifications:FM RadioSensitivity: Less than 20dbStereo Separation: More than 25dbSome PlaybackMusic format support: MP3 / WMADisplay format: ID3 displayAudioOperating temperature: -20 - 60 deg.CQuiescent current speaker impedance: 4OhmFrequency Response: 20 - 20000HzFuseRed: 1AYellow: 15ARemote Control- Build-in lithium cell: CR2025 3V- Remote range: 5mType: Car MP3 PlayerModel : 2127Special Function : FM Radio， MP3 Player， USB flash diskFeatures: Breakpoint memory playingColor : BlackOutput Power : 4 x 60WVoltage : 12VMusic Source: SD card， 3.5mm stereo headphone jack， USB flash disk， Cellphone， Flash driveBuilt-in EQ: Pops， Jazz， Rock， ClassicSNR (dB): ◎60dbDegree of Distortion (%): ●0.3%FM Channel: 87.5 - 108.0MHzMedia Format : Mp3， WMAPackage weight: 0.712 kgProduct Size (L x W x H) : 18 x 14 x 5 cm / 7.07 x 5.50 x 1.97 inchesPackage Size (L x W x H) : 21.5 x 18 x 8 cm / 8.45 x 7.07 x 3.14 inchesPackage Contents: 1 x 2127 Car Audio Stereo FM USB SD Mp3 Player AUX， 1 x Remote Control， 1 x Wire， 1 x Installation Tool Set， 1 x English User Manual