Headset Poly Blackwire 5220 USB A

All-day comfort for telephone conferences and multimedia Noise-cancelling microphone blocks out distracting background noise Connection option for smartphones and tablets via 3.5 mm jack Answer/end call, volume control and mute buttons Wideband audio with noise-cancelling microphone for a professional PC call experience For UC applications and softphones from Avaya, Cisco, Microsoft, etc. Certified for Skype for Business