3M™ E-A-R™Classic Corded Earplugs 29dB - Pack of 500 H520A-407-GQ 8-14 and variable dark state

8-14 and variable dark state colors

inorganic and acid gases and vapours

With receivers RX circuit optimised to the fixed antenna

Lithium ion battery with LED to indicate charge status

Bluetooth Multipoint functionality for external devices

3M™ E-A-R™Classic Corded Earplugs 29dB - Pack of 500 H520A-407-GQ 8-14 and variable dark state250 pairs per box Comfortable, soft energy absorbing foam offers a low equilibrium pressure Moisture resistant firm foam prevents swelling and the need to refit 3M proprietary slow recovery foam ensures a good custom fit inside most ear canals Reduces noise levels up to 28 dB Fully tested and approved against EN 352 8 Textured surface helps them stay in place with jaw movement over long periods Compatible with 3M E A R One Touch Pro Earplug Dispenser.