Replaceable foam makes them hygienic and economical

Listening to music close to the speakers

but to ensure the best possible fit

Prevents hearing damage and ringing ears while also providing calm for daily life

The modes differ in safe noise levels

Box - 3M™ Classic Uncorded Ear Plug (200 Pairs | Pillow Pack | SLC80 23dB, Class 4) SLC80_34 Replaceable foam makes them hygienic3M E A R Classic uncorded earplugs set the standard in hearing protection as the world's first foam earplugs. Constructed from slow recovery foam, these disposable earplugs are uniquely moisture resistant. Still one of the most widely used foam earplugs today, the 3M E A R Classic earplug is an economical, reliable choice in hearing protection and conservation. Slow recovery, low pressure foam conforms to the shape of the earcanal to help create a