3M MT7H9A high noise reduction standard communication earmuffs

Brand: 3M
Model: MT7H9A High noise reduction standard communication earmuffs
Packaging specifications: 1 pair /piece
Product description: The system microphone/speaker has impeccable design and excellent attenuation, providing good Acoustic performance, while maintaining reliable communication in a noisy environment, while also ensuring an excellent level of comfort. Equipped with high-temperature superconducting 230 headphones, microphone MT7 and helix 0.51.4m polyurethane to connect with Nexus TP-120 using adapter PTT.
These headphones are characterized by a jack used to connect to the DECT of the unit PELTOR, or a walkie-talkie to walkie-talkie adapter to connect each Kind of radio station (intercom) and telephone.
Optimized acoustic design and the best sound quality and the best reduced ear noise pressure.
Microphone and reliable communication achieve effective noise compensation.
Easy-to-operate fast positioning, craze for integrated microphones.
Soft ear cushions and wide, full of foam and gel. The headband and individual steel provide uniform pressure distribution and homogenization around the ears to achieve the best comfort and flexible wires.
Standard J11 connection (NEXUS TP-120).
Horizontal bar headphones provide as little resonance and distortion as possible, which is achieved with excellent sound reproduction even in very noisy environments.
Various configurations of sujeccincon meet the requirements of most users: the headwear on her head, neck, head and the belt for the helmet.
Number: MT7H79A
Value
Weight (g)
125
250
500
1000
2000
4000
8000
H (decibel)
M (decibel)
L (decibel)
SNR (dB)
average noise reduction
315
17.7
27.1
33.8
38.1
36.2
33.6
37.1
33
32
24
33
Standby
315
2.9
2.1
2.4
2.6
2.3
2.5
2.2
33
32
24
33
Fluctuation
315
14.8
25
31.4
35.5
33.9
31.1
34.9
33
32
24
33