"K" refers to the bit rate.

It has an impact. Generally speaking, the higher the better, as follows:

Bit rate refers to the sampling rate of converting digital sound from analog format to digital format. The sampling rate The higher the value, the better the restored sound quality. The bit rate

is a reference indicator of digital music compression efficiency. The bit rate represents the speed of the number of bits transmitted per unit time (1 second) bps (bit per second, bits/second). Usually kbps (colloquially speaking, 1000 bits per second) is used as the unit. The digital music bit rate in CD is 1411.2kbps (that is, recording 1 second of CD music requires 1411.2×1024 bits of data). A high BIT RATE of the music file means that it needs to be processed within the unit time (1 second). The amount of data (BIT) is large, which means the sound quality of the music file is good. However, when the BIT RATE is high, the file size becomes larger and takes up a lot of memory capacity. The most commonly used bit rate for music files is 128kbps. The usable bit rate for MP3 files is generally 8~320kbps, but different MP3 players have different support ranges in this regard. Similarly, most of them are 32-256Kbps. Of course, the wider the index, the better, but 320Kbps is the highest level for the time being.