em No
Meet Standard
NRR/SNR value
EP564 Series
ANSI S3.19
NRR value: 27dB
EN352-2 :2002
SNR value: 28dB
Combined with soft rubber ear plug, PP tubular insert device, nylon neck string, and portable PP Plastic box.
Unique 4 layer cut off design enhances the sound-insulated effect.
Front end spatial design fits ear channel to reduces ear internal pressure for wearer comfort.