Love love love these simple speakers for your smartphone. Tip of the hat to Paul Cocksedge for a beautiful piece of work. You know how you can cup your hand over the speaker on your phone so you can hear it better? Change The Record and Volume are basically that. No need for wires, no need for electricity, you just supply the music.
As dear as vinyl is to me, I think I have to go with Volume as the winner here. Simple and elegant