Plantronics Audio 400 DSP

Device: headset for PC; The sound: stereo; The connection type: wired; Headphone design: overhead, open; Cabling: bilateral; Cable length/radius: 3 ;m; Speaker diameter: 28 ;mm; Nominal impedance: 32 ;Om; Frequency range: 20-20000 ;Hz; Microphone frequency range: 100 - 10000 ;Hz; The sensitivity of the microphone: -38 ;dB; Connections: Plug 3.5 mm (mini-Jack) USB ; Functions/capabilities: Noise reduction The regulator volume disable microphone ; The possibility of folding: +; ...

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Table of characteristics

Deviceheadset for PC
Features 
The soundstereo
The connection typewired
Headphone designoverhead, open
Cablingbilateral
Cable length/radius3 m
Technical har-Ki 
Speaker diameter28 mm
Nominal impedance32 Om
Frequency range20-20000 Hz
Microphone frequency range100 - 10000 Hz
The sensitivity of the microphone-38 dB
ConnectionsPlug 3.5 mm (mini-Jack)
USB
Functions/capabilitiesNoise reduction
The regulator volume
disable microphone
Total 
The possibility of folding+