Description
Model H7040
Product # : 12520G-01
Behind the Head Style (BTH)
- BTH style for applications requiring hard hats or protective headgear
- Wire boom for easy, precise microphone placement
- Foam-filled ear seals for maximum comfort
- Rugged construction
- 36 in. straight cord, U-174/U plug connect
- Noise Reduction Rating (NRR): 24 dB
| Noise Attenuation Data | ||||||||||
| NRR 24 dB |
Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 3150 | 4000 | 6300 | 8000 |
| Attenuation (dB) | 18.3 | 23.3 | 30.9 | 35.3 | 36.3 | 42.9 | 43.2 | 42.3 | 41.4 | |
| Standard Deviation | 3.7 | 3.7 | 3.9 | 4.4 | 2.8 | 3.1 | 3.1 | 2.7 | 3.9 | |