None, really i have had htis thing for 4 months and not found one great thing about it, except maybe for the stupid people that hop in my truck and say wow, nice display.

Overheats, skips when it gets warm, skips even on new cd's, way to much useless feutures.

Quite possibly the WORST! cd player I have ever owned. Does not sound good at all for having a 4 volt preout. Hard to get good sound set up on it, wayyyyyyy to much useless feutures, I used to own a alpine 9841 2004 model before this and it was half the price and blew this POS out of the water!! I do not recommend buying this cd player, I would wayyy more recommend something else.