Brand - Logitech, Model - Logitech H390, Type - Regular Headphone, Connectivity - Wired, Frequency Response (Hz - kHz) - 20Hz - 20KHz (Headphone), 100Hz - 10KHz (Microphone), Sensitivity (dB) - 94dBV/Pa +/- 3dB (Headphone), -17dBV/Pa +/- 4dB (Microphone), Impedance (ohm) - 32ohm, Microphone - Yes, Plug Type - USB, Cable Length (ft) - 7.64 Ft, Others - The perfect business headset for voice calls, Skype, webinars and more, Minimizes unwanted background noise for clear conversations. Rigid, left-sided mic can be positioned for better voice capture, Simple in-line controls on the headset cord let you adjust the volume or mute calls without disruption, Adjustable headband features swivel-mounted, leatherette ear cushions for hours of comfort. Easy to clean, too. USB provides easy plug-and-play operation., Part No - H390, Warranty - 2 year