Brand: 3M 1270 Christmas tree with line earplugs
Shelf life: 5 years
Uses: Improve sleep, concentrate, protect hearing and so on. Is your home, dormitory, self-study classrooms, travel boat plane travel, factories, construction sites, downtown areas from noise interference is a good helper, is your healthy new life good partner.
3M 1270 Efficacy: Noise reduction (NRR) 31 dB, bullet-type profile design, smooth surface, the anti-fouling treatment, wearing health, safety, soft and comfortable, sound insulation is good, waterproof into the ears, can be used in swimming.
Instructions for use:
1, remove the earplugs, one hand pinch ear plugs;
2, the other hand will be stuffed into the ears up to lift (this is very critical) and keep, and then headset head toward the ear, slow, gentle and rotating into the ear;
3, hand-held earplug fine-tuning to a comfortable location, so that the correct positioning.
