Avaya 1608, 1608I IP, 1616 & 1616IP Phones. The fixed microphone boom adjusts freely to any position, and is longer than non-pro headsets. Integrated Product Sensitivity: 115±5dB@1KHz. Sensitivity: -47±2dB@1KHz 680Ω 1.5V 0dB=1v/pa.
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