Good suggestion. I also have wired etymotic earphones with the rectangular foam tips. They're good at passive sound isolation, but they don't block high pitched

Good suggestion. I also have wired etymotic earphones with the rectangular foam tips. They're good at passive sound isolation, but they don't block high pitched kid screeching too well. Better than AirPods Pro though! Cheap $0.50 earplugs are roughly on par with those foam tips. They're good at blocking low pitched engine noise.