– Shells in ABS;
– Cushions in polyester foam coated with synthetic mousse;
– Flexible and adjustable polyamide headband. 5mm overhang along the entire length of the band for added strength;
SNR:20H:25M:17L:11
| FREQUENCY (Hz) | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
| Average attenuation (dB) | 9,4 | 9,3 | 10,1 | 17,5 | 22,5 | 27,5 | 32,7 | 34,4 |
| Standard Deviation (dB) | 2,2 | 3,3 | 2,1 | 2,9 | 2,9 | 2,9 | 5,9 | 6,5 |
| Assumed attenuation (dB) | 7,2 | 6,1 | 8,0 | 19,7 | 19,7 | 24,6 | 26,8 | 27,9 |
Normal EN 352-1
