I am selling a used Regeo 2x2 full-seg tuner built-in memory navigation AZ-723. I had this installed by a car shop while my car's original navigation system was broken. I used it for about two weeks. After that, I had the original navigation system repaired and returned, so I had this one removed and decided to sell it. From the manufacturer's page: Easy operation with convenient features ★ 6.75-inch WVGA touch panel LCD (with LED backlight) ★ Equipped with a 2-screen split function that allows simultaneous viewing of TV, DVD, HDMI, and navigation ★ Supports AVI/MP4/MP3/WAV file formats ★ Equipped with USB ports (1 for media, 1 for charging) ★ Supports video/audio input from external devices (external input terminal) ★ Bluetooth function allows for wireless connection (audio/phone) ★ Stable full-seg reception for beautiful images in the car ★ Can play DVDs recorded with terrestrial digital broadcasting (CPRM compatible) ★ CD-DA/CD-R/CD-RW/DVD-V/DVD-R/DVD-RW/CPRM compatible ★ Wide FM (FM supplementary relay station) compatible ※76.0MHz～99.0MHz ★ Equipped with a back camera input terminal