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Model OSK-63A Anti-noise Transmitter-receiver adopts the structure of neck ring soft strap. It is the audio terminal for radio sets and other communication equipments. It can transmit and receive voice signalcleaely in the high noise environment condition.
Main Technical Specifications:
Operating temperature: -40℃～+55℃
Frequency range: 200Hz～4000Hz
Transmitting impedance: 150（1±15%）Ω（1000Hz）
Transmitting average sensitivity≥0.6mV/Pa
Receiving impedance: 2×300（1±15%）Ω（1000Hz）
Receiving average sensitivity≥95dB/mW
Sound insulation amount≥20dB