Brand:3M 1426Anti-noise earmuffs

MOQ:20Piece(1 Case)

Product Certification: LA certification, Niosh certification

Shelf life: 5 years

Function: Noise reduction rate (NRR) 22 dB

Application:  concentration, protection of hearing and so on. Is your home, dormitory, self-study classrooms, travel boat travel, factories, construction sites, downtown areas from noise interference is a good helper, is your healthy life good partner, but also you see F1 race essential ear caps.

Structure and function: cup cover lined with the sponge, leather bag with the outer edge, headband adjustable elastic, wear health, safety, soft and comfortable, sound insulation is good.

Instructions for use:

1, the headband stretched to the maximum "open" position and across the top of the head, the cup cover the ears;

2, relax the head hoop back, adjust the cup height until the head hoop can support the cup, and ears feel comfortable so far;

3, the earmuffs should be tightly fit the head;

4, adjust the headband to ensure the correct hoop, effectively cut off the noise.