"3M E-A-Rsoft Yellow Blasts are the softest, smoothest, highest NRR earplugs. Expands slowly to fit virtually any ear canal. 200 pair per box. NRR 32dB. Noise Reduction Rating NRR dB 32, Disposable Yes, AM/FM Radio No, Pairs qty. 200, Hearing Protector Type Earplugs, Case Included No, Battery Required No."