The CS800 is a single-band UHF analog/DMR mobile radio with 45 watts on high power.
The CS800D is a dual-band V/U analog/DMR mobile version, with 55 watts VHF, 45 watts UHF.
The CS800D is available on a close-out sale for $199 and I just received one last week. After programming it will replace the CS800 currently in my car. The only reason for the fire-sale is that the newest version is now Part 90 certified which will allow CS to market in the commercial arena. They are wanting to clear out their existing inventory before the new versions arrive next month.
The CS800/D now supports up to 10,000 channels and up to 160,000 private contacts.
They also had the new BFD (Big Freaking Display) on sale during Hamvention for $199 and I snapped one of them up immediately! As you can see, the BFD truly lives up to it's name. Compare the BFD to the tiny amber display on the small front panel in the picture below bottom of the center console stack near the mic cables. The radio near the top is the control head for a TYT-7800 V/U analog for ham use.