Communication Helmet Communication Helmet manufacturers Communication Helmet for car
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Product Description
Equipped with productive communication helmet factory and company, Fenghuo Hongsheng is one of the leading China communication helmet manufacturers and suppliers. Welcome to contact us.
Model FHH-1 Communication Helmet is composed by helmet, communication cap and adapter cable. It is an audio terminal used in various communication cars.
Main Technical Specifications of Communication Helmet :
Operation temperature: -40?~+65?
Weight=1900g (whole set)
Transmitting impedance: (150±22.5)O(1000Hz)
Transmitting sensitivity:(-63±3)dB/Pa(200~4000Hz,1V for 0dB)
S/N=8dB
Receving impedance: (500±100)O(1000Hz)
Receving sensitivity:(98±3)dB/mW(200Hz~4000Hz,20µPa for 0dB)
Sound insulation amount of earmuffs=20dB(125Hz~8000Hz)
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