Industrial earmuff
Signal noise ratio (SNR): 33 dB
Noise reduction rating (NRR): 28 dB
With extra 1 pair earplug
Signal noise ratio (SNR): 38 dB
Noise reduction rating (NRR): 32 dB
Conforms to ANSI3.19-1974 and EN352-2:2020100% 
New ABS impact-resistant shell body,Soft headband padding providing comfortable wearing
Stainless steel wire for easy personalized fit adjustment Unique double-shell design guarantee offer high noise reduction rating
Suitable for loud machinery,lawn movers, engineer ,industrial machines power tools,loud music,noise places
Packed by colour box.