I am extremely sensitive to human voices in public (both in the background and near me). Which would be a better option to drown out voices:
1) Earphones with low volume (I'm afraid of dampening my hearing sensitivity) with additional earmuffs like these https://www.amazon.com/Mpow-Reduction-Protection-Adjustable-Professional/dp/B01L1U9L5W/ref=sr_1_3?ie=UTF8&qid=1536056678&sr=8-3&keywords=mpow+ear+muff
2) Over the ear head phones on maximum volume but with earplugs (the foam kind, not the ones which play music) underneath like these https://www.amazon.com/Mpow-Disposable-Earplugs-Reduction-Individually/dp/B071L47XYV/ref=sr_1_2?s=grocery&ie=UTF8&qid=1536056777&sr=8-2&keywords=mpow+earplugs