Features: Supports Advanced Audio Distribution Profile Off for time display function Digital high-quality FM stereo radio, Preset 18 stations (frequency: 87.5-108 MHz) Support USB / SD / for MMC card reader Support Audio: MP3 Support folder function Support breakpoints and ID3 Play Rotary Volume Control MP3 randomized, 10 track up / down playback Electronic control volume treble, , balance and fader Mute and Loudess control 4-channel output Specifications: Type: Car MP3 Player Special Function : FM Radio, Bluetooth-compatibletooth, Hands-free calls, MP3 Player, USB flash disk Output Power : 4 x 60W Voltage : 12V Size:Length: 18.8cm(7.4in) ,Wide: 5cm(1.97in),High:6.5cm(2.56in) Music Source: SD card, 3.5mm stereo headphone jack, Cellphone, Flash drive Built-in EQ: Rock, Classic, Pops, Jazz SNR (dB): 60db Degree of Distortion (%): 0.3% FM Channel: 87.5 - 108.0MHz Bluetooth-compatible Version: 2.0 Media Format : WAV, WMA, Mp3 Quantity: 1Set Package Contents: 1 x JSD - 520 FM Radio 1 x Remote Control 2 x Wire 2 x Installation Tool 1 x User Manual