SPECIFICATIONS

Brand Name: 3M

Certification: CE

Choice: yes

High-concerned chemical: none

Model Number: 1250

Origin: Mainland China

10 Pairs Genuine 3M 312-1250 Sponge Soft Cord Earplugs Noise Canceling Norope Earplugs Noise Protection Earmuffs

Product name: 3M 312-1250 noise-canceling bullet earplugs

Noise Reduction Value: SNR=36dB NNR=33dB

Features: longer rebound time, softer

Material: foam

Size: 0.47in*0.94in

Usage range: Noise environment

Recommendation: Replacement once every 1-3 days, depending on the frequency of use.

Product Reminder!

3M Anti-Noise Earplugs reminds you that it is recommended to change the earplugs every 1-3 days, the exact frequency of replacement can be decided according to the actual situation.

If the temperature in your receiving location is cold, which will cause the 3M earplugs to become hard, please place the earplugs in a warm room to warm them back up, or use the temperature of your hand to make them soft again. After the product is back to soft, you can wear it normally.

Rebound time: ≈ 60 seconds (complete rebound) Due to the narrowness of the ear canal, the rebound time after wearing is approximately 20-30 seconds. Please allow the earplugs to fully rebound to avoid any noise leakage.

Notes:
This product is foam material. Air pores on the material surface are normal inherent features of foam, not quality defects, and will not affect normal use. Tiny pores and slight uneven surfaces may exist on foam items. These are natural material properties and not product quality problems.