The disposable ones will suffice but you're going to want a pair for any concert you go to.
theres many types of muffers like ear plugs and headphones! ill send some ive tried and some ive heard good things abt
headphones: these are very comfortable and low profile and work very good! the only thing is id that they dont form to your head very good so it kinda sticks out where the metal is at. but it covers 34db i believe so very affective
these are popular and form fitting but they are a little too tight for me and the ear protection is less (21db)
earplugs:
these are amazing if you dont wanna wear headphones but it makes it difficult to hear conversations like headphones. the company does offer plugs that have noise reduction AND clarity for conversations but those are a bit pricey. heres the conversation one, one of many
others ive heard of: