Active Anti-noise Transmitter-receiver Headset
Equipped with productive active anti-noise transmitter-receiver headset factory and company, Fenghuo Hongsheng is one of the leading China wireless ears manufacturers and suppliers. Welcome to contact us.
Model OSDK-12 Active Anti-noise Transmitter-receiver Headset which adopts the structure of binaural head ring is the audio terminal for the pilot. The product adopts Active Anti-noise Technology so that it can enhance the voice communication articulation in the high noise environmental condition.The pilot’s audition is protected availably. It has obtained CTSOA (Serial Number: TSOA0034-XB-002) which is awarded by Civil Aviation Administration of China. It can replace the foreign products.
Main Technical Specifications:
Frequency range:200Hz～4000Hz
Power supply voltage: (9±3) V DC
Operating current≤50mA
Transmitting average sensitivity: (-33±4) dB/Pa
Receiving average sensitivity: (90±5) dB/mW
Average sound insulation of earmuffs≥25dB (300Hz～8000Hz)
Active anti-noise sound insulation amount:Max≥12dB；Min≥6dB (50Hz～300Hz)
PS:The transmiting sensitivity can be adjusted according to the requirement of the user; the ear can be also used in single track or double tracks; It also has the volume-regulating function.The transmitter-receiver impedance can choice 75Ω、150Ω、300Ω、600Ω,etc.
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