BT Featureline Phone: MARK II

BT Analogue Phones: Converse 2100, 2200 & 2300

Nortel Norstar Phones: M7208, M7310, M7324, M7208N, M7310N, M7324N, T7208 & T7316E.

Nortel Meridian Phones: M2616D, M2216D, M3310, M3820, M3903, M3904 & M3905

Telephone Headset Description

This pro headset boasts greater noise-cancelling technology so your voice comes through clear despite workplace volume. All monaural designed headsets offer a cool and comfortable fit; as a pro headset, it is more robust and has a larger headband. The flexible microphone boom adjusts freely to any position, and is longer than non-pro headsets.

Earphone Speaker Specification

• Transducer: Moving Coil Dynamic Speaker
• Impedance: 150Ω±15%
• Integrated Product Sensitivity: 115±5dB@1KHz
• Resonance Frq (Fo): 350±20%
• Frequency Respond: 20~20KHz
• Rated Input Power: 10mW
• Maximum Input Power: 25mW

Microphone Specification

• Transducer: Electorate condenser microphone
• Sensitivity: -47±2dB@1KHz 680Ω 1.5V 0dB=1v/pa
• Integrated product Sensitivity: -41±5dB@1KHz 680Ω 1.5V 0dB=1v/pa
• Impedance: Max:2.2kΩ@1kHz
• Directivity: Uni - Directional
• Frequency: 100Hz—16000Hz
• Max operation voltage: 10v
• Standard operation voltage: 1.5v
• Current Consumption: Max: 0.5mA
• S/n Ratio: Min: 60dB @1kHz