Small-Medium speaker for white/green noise + music while traveling?

Hi all, looking for suggestions.

I need something that is easily packable, has 10+ hours of battery life, and works well for music/sleep noise. I don't need a ton of bass but balanced mids and highs are important. Dust/water resistance would be a plus for beach trips.

I currently have a Soundcore Motion 300, JBL Go 4, and a JBL Xtreme 5. The Go dies in the middle of the night, the motion is a little big and isn't dust rated, and the Xtreme is obviously too big.

I'm eyeballing the Tribit Stormbox Micro 2 or 3, but not sure if that's the best bang for my buck. I'm looking at $65 or less.