Car CD player above the English meaning ROCK. JAZZ .. CLAS. FLAT.
I strongly recommend setting the local custom, that is, user-defined sound. Sound effect is equivalent to monosodium glutamate, with their own feeling to set the sound, so out of the sound is the most suitable for their own, listening very comfortable, set a lot of sound effects, you like the bass, then put the low band slightly strengthened, but the final EQ curve should be presented U-shaped, such a U-shaped curve out of the music is very natural. Hopefully the answer might help.
Rock, jazz, classical, straight, pop, it is so that you choose the music effect
Sound effects are: pop (pop), rock (rock), class (classical), flat (flat), jazz (jazz), vocal (vocal)
