Telephone Headset RJ11 Double Ear Great Sound Noise Cancelling Mic Light Weight
The flexible microphone boom adjusts freely to any position, and is longer than non-pro headsets. Earphone Speaker Specification. Integrated Product Sensitivity: 115±5dB@1KHz. Sensitivity: -47±2dB@1KHz 680Ω 1.5V 0dB=1v/pa.