New Concept Design:
Adjustable noise reduction rating at SNR 25-SNR 35dB by turning the centre physical knob. When the knob turn to "+", the SNR is 35dB, when the knob turn to "-", the SNR is 25dB, It helps you to use in different working surroundings without taking off the headphone.
Safety and Trusted:
ANSI S3.19, EN352-2 and AS/NZS 1270 approved, Suitable for Military, Hunting, Yard work, Racing, Noisy work sites and etc.
New arrival headband wrapped with soft TPE out cover and an adjustable telescopic metal rack for personalized fit.
Comfortable Cushion:
Ultra soft and wide ear cushion can fit ear perfect. No squeezing head and ear. Suitable for long time wear.
Close (+)
EN 352-1:2020 SNR:35dB
ANSI S3.19-1974 Attenuation data
NRR:28dB CSA Class AL
AS/NZ S1270:2002
SLC(80): 29.7dB
Class 5
| Test frequentcies (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
| Mean attenuation(dB) | 19.5 | 27.2 | 37.0 | 42.1 | 38.6 | 42.4 | 38.1 |
| Standard Deviation(dB) | 3.7 | 3.3 | 3.7 | 4.4 | 3.3 | 3.8 | 5.2 |
| Mean-minus-Std. dev.dB/APV | 15.8 | 23.9 | 33.3 | 37.7 | 35.4 | 38.6 | 32.9 |
| SNR= 35dB | H=37dB | M=33dB | L= 24dB |
| SNRm=36.9dB | Hm=39.4dB | Mm=35.7dB | Lm=27.4dB |
| SNRs=2.3dB | Hs=2.9dB | Ms=2.6dB | Ls=3.3dB |
Open (-)
EN 352-1:2020 SNR:25dB
ANSI S3.19-1974 Attenuation data
NRR:19dB CSA Class B
AS/NZ S1270:2002 SLC(80): 24dB Class 4
| Test frequentcies (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
| Mean attenuation(dB) | 9.4 | 14.6 | 23 | 35.3 | 37.1 | 39 | 34.4 |
| Standard Deviation(dB) | 2.8 | 2.8 | 3 | 2 | 3.8 | 4.6 | 5.5 |
| Mean-minus-Std. dev.dB/APV | 6.6 | 11.8 | 20 | 33.3 | 33.3 | 34.4 | 29 |
| SNR=25dB | H=33dB | M=22dB | L= 14dB |
| SNRm=27.2dB | Hm-35.7dB | Mm=-24.8dB |
Lm=16.1dB
|
| SNRs 2.4dB | Hs=3.1dB | Ms=2.4dB | Ls=2.4dB |