no it doesnt say its just say multi colr foam earplugs probaby you can use in the water or for the noises i havent use ear plugs before....i felt its like spongy like marshmallow....in the plastic theres numbers like nrr 32/canada class A(l)/SNR 35/ SLC60 25,class 4/CA 14.116 so i dont know where is decibel there