QB-EM-5002A Headband Earmuff
Compliance: ANSI S3.19:1974,NRR27
EN352-1:2020, SNR34
QB-EM-5002B Foldable Headband Earmuff
Compliance: CE EN352-1:2020, SNR33
ANSI S3.19:1974, NRR26
QB-EM-5002C Neckband Earmuff
Compliance: EN352-1:2002, SNR31
QB-EM-5002D Helmet Attachable Earmuff
Compliance: EN352-3:2002, SNR28
ANSI S3.19:1974, NRR22