When you're on the go protect those ears from harmful sounds emitted from outdoor power equipment use with ECHO's Travel Pack Earplugs (103942210). Designed for Pros and homeowners the ECHO earplugs are ANSI and OSHA approved and deliver an NRR 23 dB(A) rating to keep potentially harmful noise emissions from damaging hearing. Each set of earplugs is joined by a plastic string so they stay connected at all times and comes with a convenient clear carrying case with key ring to attach to a work belt, key chain or carabiner to keep them clean and ready to go when you are. - Less