[Material]: elastic polyester material
[Use]: concentrate on the spirit and protect your hearing. It is a good helper for you to avoid noise interference in your home, bedroom, self-study classroom, travel by plane, factory, construction site, downtown area, etc. It is a good partner for your healthy new life.
Display: noise reduction (NRR) 29 decibels, bullet-shaped contour design, smooth surface, anti-fouling treatment, wearing hygienic, safe, soft and comfortable, good sound insulation.
【Instructions for use】:
1. Remove the earplugs and use your index finger and thumb to make them thin;
2. The other hand lifts the ear to be lifted upwards (this is critical) and holds it, then the rounded earplugs are turned toward the ears and stuffed into them;
3. Hold the earplugs by hand until the earplugs are fully expanded and shaped in the ear (about 30 seconds or so).
【Precautions】:
1, Because the earplugs return to the elastic time is very fast, so make sure that the earplugs are thinned before being inserted into the ear, otherwise the effect can not be achieved;
2. Remember to pull the ear up and out before inserting it into the ear.
3. Keep your hands clean during operation;
4. Pull out slightly, slowly, and rotate when you take it out. Don't use too much force.