The Scan Banded Foam Ear Bud is fitted with round earplugs that are made from a polymer foam and mounted onto a headband for an enhanced and secure fit. It has an SNR of 27 dB reduction. This will significantly reduce the ambient noise levels surrounding the user, offering additional protection. The protection level and lightweight construction makes them the ideal product to be worn for long periods of time. Recommended shelf life of 3 years. Conforms to EN 352-2.