The bit rates are different, smooth, standard, lossless, and high quality are just like watching videos with smooth, standard definition, high definition, ultra high definition, 720P and other differences. The higher the quality, the larger the file! QQ Music supports basically all playback devices. If your headphones are not very good with your own device, just use ordinary ones and you won’t be able to hear the difference at all.

Ps: If you want to hear good sound quality, you must at least be equipped with an MP3 worth several thousand yuan and headphones worth several thousand yuan.