To listen to lossless audio, you can use Qianqianjing, FOOBAR, or WINMAP, and the sound difference is very subtle. Among them, WINMAP is famous for its versatility and its built-in functions are very comprehensive. However, its disadvantage is that it takes up a lot of memory and is difficult to get started. FOOBAR is small in size, has excellent sound effects plug-ins, and is very scalable. It is suitable for mid-to-high-end players. The disadvantage...is that it is not as convenient as Qianqianjing. Qianqianjingting can’t explain it. There is no one in the world that is easier to use than it. The above three models use the same decoder, and the sound difference is relatively subtle. Others, such as iTunes, Beo, ZUNE, etc., have heavier sound rendering. iTunes is on the middle road, with slow startup speed and excellent cover management capabilities. However, it does not support lossless formats such as APE, FLAC, and TTA, and needs to be converted to WAV to add. BEO's sound is warmer, the sound has been optimized, and the gain is obvious for pure MP3 or audio files with poor sound source quality. I forgot about ZUNE, but I remember that the sound was very distinctive. In essence, these three models are departures from lossless sound restoration; but in terms of listening experience, you can slightly consider it according to your own preferences. As for Kugou, QQ, Duomi, etc., I personally don’t recommend them.