Earplug sleep anti-noise sleep sound insulation noise reduction earplugs work study lunch break sponge

Description

Efficacy: sound insulation and noise reduction
Color: random
Earplug head shape: bullet type
Order number: 036
Scope of use: work, study, leisure, sleeping, flying, high-speed rail, construction site
NNR: 31
Material: PP, foam
Noise reduction rate: 50%-80%
SNR: 29
How to use: In-ear
Whether cross-border export special source: yes
Packing: bag, box
Place of Origin: Zhejiang
Brand: Zhengxuan
Item number: ZX-036
Executive standard: national standard
Whether it is washable: yes
Special service: can be customized
Series: 036
Function: reduce noise
Size: length 2.5CM diameter 1.3CM
Category: bag, box, soundproof earplugs
Type: earplugs