Smoother voice output and clearer calls. Material: ABS. Sensitivity -40±3dB (0dB=1V/Pa,At1KHz). Ambient Noise: ≤60dB(A). Atmospheric Pressure: 86-106Kpa.
(Binaural)) Customer Service Headset Telephone Headset Business Office
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—Business Headphone RJ9 Plug Telephone Headset For Customer Service
