PiPod is what its name and the short description says it is, an open source music player built using Raspberry Pi Zero as a base to give it life, power, and speed in music reproduction. While this will not be the choice of many when it comes to choosing a music player, it can be for those who enjoy doing things for themselves, and also for fans of the construction and development of this type of gadget.

One of the things I like most about PiPod is that it gives us a music reproduction with an incredible quality since it uses the well-known music player VLC as the base player software; which allows the reproduction of any format and quality of music. It also has a 1200mAh battery that will give us a great autonomy.

...uses VLC as backend for playback and Pygame as frontend
Source

You can buy this here