Plantronics Audio 440

Device: headset for PC; The sound: stereo; The connection type: wired; Headphone design: ear; Cabling: bilateral; Nominal impedance: 32 ;Om; Frequency range: 100-18000 ;Hz; Nominal impedance microphone: 2200 ;Om; Microphone frequency range: 300-3000 ;Hz; The sensitivity of the microphone: -44 ;dB; Connections: Plug 3.5 mm (mini-Jack) ; Functions/capabilities: The regulator volume disable microphone ; ...

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Table of characteristics

Colorblack
Deviceheadset for PC
Features 
The soundstereo
The connection typewired
Headphone designear
Cablingbilateral
Technical har-Ki 
Nominal impedance32 Om
Frequency range100-18000 Hz
Nominal impedance microphone2200 Om
Microphone frequency range300-3000 Hz
The sensitivity of the microphone-44 dB
ConnectionsPlug 3.5 mm (mini-Jack)
Functions/capabilitiesThe regulator volume
disable microphone
Total