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
$ 44.90
$ 64.90
$ 42.90
$ 83.37
$ 64.13
$ 25.99
$ 83.01
$ 63.85
$ 49.90
$ 63.82
$ 49.09
$ 89.00
$ 119.00
$ 59.50
$ 49.95