Plantronics Audio 322

These Headphones are equipped with a microphone that is fully adjustable to your needs. The microphone boasts a useful feature, which suppresses external noise and therefore guarantees excellent speech recognition. The headphones are suitable for making phone calls over the internet and for all VoIP applications.
Parameters and Specifications:
Frequency range:
20-20kHz
Interface:
2 x 3.5mm jack for PC/Laptop
The cable length:
1.7m