Apple Watch SE (2nd Gen)... Can I listen to music using Beats bluetooth earbuds with only the watch? Or is the phone necessary for this?

I am looking to buy my first watch and have looked at the Apple Watch SE (2nd Gen). When I run, I like listening to music with my Beats wireless earbuds. My phone is what the earbuds are connected to for the Spotify music. My question is the following...

Is it possible to listen to listen to music with my Beats wireless earbuds using only the apple watch? For example, if I go on a run and want to listen to music, do I need to bring my iPhone with me? Or can it be done completely through the watch?

Thanks!