The biggest added feature is the built in Bluetooth with on screen dialing and recieving via the touch screen as well as A2DP functionality which enables wireless media streaming from a cellphone or bluetooth enabled device. The X403BT is also GPS ready, but GPS navigation is only available through an optional GPS box which is sold seperately. The X403BT includes a native universal DVD player which supports DVD, MP4(AVI/DIVX/3.X/5.X), VCD, JPG, SVCD, WMA, MWV, and CD formats. It includes a front panel USB input and SD Card slot, High power 4Ch Digital Output Amplifier, 4 channel RCA pre-outs (front,rear and sub) including Subwoofer output, a Backup Camera Input, and the ZPodLink which provides Ipod and Ipod Video playback through your vehicle sound system via a direct connection (Sold Separately). The X403BT also supports digital album preview, or JPEG image display with a browser, slide show, zoom, and pan set of functions. The device includes additional features such as a built-in AM/FM Radio with 30 presets (that has auto scan, and store functions), multi-zone support (NTSC/PAL), power activation on Brake-On Function, and an included remote control. The XOVision X403BT was released in November, 2006 and has an MSRP of $449.99.