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
$ 88.86
$ 68.35
$ 76.00
$ 55.00
$ 71.34
$ 54.88
$ 265.00
$ 50.00
$ 20.00
$ 93.00
$ 59.00
$ 66.38
$ 51.06
$ 57.00
$ 45.00
$ 59.00