3M 1110 bullet ear plugs with string/3m 1110 Corded Foam Ear Plugs /hearing protection corded foam earplugs  3m 1110

Specification:

1.Anti-fouling processing on the surface, health and safety
2.Bullet shaped contour design, noise reduction effect is nice.

3.Purpose: to improve sleep, concentrate, hearing protection, you are at home, bedroom,  self-study  classroom, ship air travel by car, the place such as factories, construction  sites, bustling downtown  from the good helper of noise interference.Is your new healthy  life good partner, and you see F1 race  essential oh.The earbuds closely contact with  external auditory canal after inserted into the ear  canal, with isolation voice into the  middle ear and inner ears, to achieve the purpose of sound  insulation, so that people can  get a quiet rest or work environment.