Supports Advanced Audio Distribution Profile
Off time display function
Digital high-quality FM stereo radio,
Preset 18 stations (frequency: 87.5-108 MHz)
Support USB / SD / 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, bass, balance and fader
Mute and Loudess control
4-channel output

本机无存储卡，需用户自行购买。

参考链接:http://www.ebay.co.uk/itm/24V-Head-Unit-In-Dash-Car-Vehicle-Stereo-USB-SD-FM-AUX-Radio-MP3-CD-DVD-Player-/282150027190?hash=item41b173bfb6:g:GO4AAOSwHoFXv7su

图片上是五款产品   YLDVD6233Z

YLDVD6247

YLDVD6233   

这三款是大功率带蓝牙的，其它的是小功率，不带蓝牙