Description
Improve sleep, focus, hearing protection and so on. It is your home, dormitory, classroom, self study, travel boat, plane travel, factories, construction sites, downtown areas of noise interference is a good helper, is your new healthy life a good partner.
3m effect 1100:
Noise Reduction (NRR) 29 dB, bullet type contour design, smooth surface, anti-fouling treatment, health and safety wear, soft and comfortable, sound insulation is good.
Instructions for use:
1, remove earplugs, with the index finger and thumb to rub just fine.
2, the other hand will be stuffed in the ears to the outside (this is critical) and preserved, and then rub the thin head of the ear toward the ear, stuffed in it.
3, hand holding ear plugs until ear plugs are in the ears of full expansion of stereotypes (about to last about thirty seconds).
Precautions:
1, because the earphones to restore flexible time is very fast, in order to determine the ear plugs were inserted into the ear before rubbing fine, or the best results cannot be achieved.
2, remember to enter the ears before the ears are pulled out, ear plugs to expand after the best effect.
3, Please keep your hands clean when working.
4, slight removal, slow, rotating pull, do not force too much.
