The Otto Noize Barrier Micro Electronic Earplugs provide continuous impulse noise protection while maintaining natural hearing at safe sound levels. They provide up to 40db of blast & impulse noise protection while amplifying soft sound up to 5X. The earplugs are rechargable (USB) and come with a rugged case which also contains a maintenance kit and assorted eartips to give you the proper fit. Shipping and insurance will be $20.00.
Otto Noize Barrier Micro Electronic Earplugs