English settings on car audio: rock (Rock), CLAS (Classical),? FLAT (flat)? JAZZ (jazz) It rose in the mid-195s and was mainly influenced by rhythm and blues, country music and Ding-Bang-Xiang music. Many early rock music was a cover version of black rhythm and blues, so rhythm and blues was its main foundation. Rock music has many branches and complex forms.

Other English on the car CD player:

1. pop ：pop's curve is roughly the same as ROCK's, slightly lowering the low frequency and enhancing the high-pitched part, which is suitable for listening to pop music.

2. vocal：vocal promotion is mainly concentrated in the intermediate frequency part, that is, the human voice part, which is suitable for listening to cross talk sketches or recorded files, and is suitable for listening exercises.