Just received the Lotoo PAW S1! Whoop whoop!
It's solidly built and easy to use. You just use the 'Fn' button to scroll through and select from a range of settings, including rock, pop, classical, Movie, Game and Headphone.
All quite different from each other.
Am having fun watching a bit of The Expanse in 'Movie' mode on the S1. The 'DAH DAH DAH' kind of bass rumbles at the start of the episode sent a shiver down my spine, and the voiceover sounds like it's standing behind me and talking right into my ear