BBK is BBK, a domestic brand. The better music phones are Meizu and Sony Ericsson. Samsung is still good. Nokia and Motorola have nothing to do with music. They don't have professional music phones. I don’t recommend BBK or OPPO. The price is unfair and the workmanship needs to be improved. I use Sony Ericsson. There is still a big gap between other brands and Sony Ericsson in terms of music.