On the cheap, Earasers. They're small enough that they're almost invisible, and they're designed to attenuate roughly evenly across the audible spectrum. That m

On the cheap, Earasers. They're small enough that they're almost invisible, and they're designed to attenuate roughly evenly across the audible spectrum. That makes them great for concerts, but other folks here claim that the top-heavy attentuation profile of non-music specific earplugs is actually better for speech.