The Last Track Button emoji is two connected triangles pointing to the left with a vertical line in front. Everyone has their favourite song that they just love to play over and over.
The last track button emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the symbols
category. Because the last track button emoji has been around for quite some time, it should display correctly in the majority of operating systems.