Cushion: Foam.
Headband: ABS.
Standards
(EU) 2016/425
SNR 26DB Average.
H30: high Frequency
M24: Medium Frequency
L15: Low Frequency
USA
ANSI S3.19-1974 American National Standards Institute
NRR21dB NRR- Noise reduction rating
$ 55.05
$ 71.57
$ 55.05
$ 71.57
Standards
(EU) 2016/425
SNR 26DB Average.
H30: high Frequency
M24: Medium Frequency
L15: Low Frequency
USA
ANSI S3.19-1974 American National Standards Institute
NRR21dB NRR- Noise reduction rating
$ 15.00
$ 96.00
$ 73.06
$ 56.20
$ 55.81
$ 42.93
$ 60.00
$ 55.00
$ 87.54
$ 67.34
$ 18.90
$ 39.00
$ 62.93
$ 48.41