Brand: EARS SECRET Color: Black Size: Cord 70cm Style: Shadow L70 Number of Items: 1 Item Weight: 45 grams 【Guaranteed Noise Reduction】 The noise reduction performance of this product complies with the US standard ANSI S3.19-1974, with an NRR (Noise Reduction Rate) of 33dB (highest level) and SNR 38dB. These are earplugs that can withstand professional use. They have been tested and certified by a reputable US laboratory, and their excellent noise reduction effect quickly leads to deep sleep. They also provide the same effect during work and study. #cottonchan Product List ☜✨ ☘️ Immediate purchase welcome, silent purchase at midnight OK ◎ ☘️ First come, first served for single items ☘️ Welcome to bulk purchases, feel free to comment ☘️ Free shipping! ・Please understand and purchase as items are stored at home and shipped in simple packaging (⁎ᵕᴗᵕ⁎) ・Please check the actual photos for the condition of the product♪ ※To offer the lowest possible price, we may remove the item from its box for shipping due to shipping costs. ◾️ Unused, but opened for photography. EARS SECRET Black Earplugs with String, Transparent Cord, 70cm, Individually Wrapped, Slim, ANSI Compliant, NRR Value 33dB, Black Soft Foam, Noise Canceling, Black Ear Plugs, String, Earplugs, High Frequency, Low Frequency, Airplane, Work, Factory, Study, High Soundproofing, SHADOW L70, 10 Pair Pack (29-34)