Plantronics Blackwire 5220 USB-A (binaural) headset has both USB and 3.5 mm smartphone connectors allows this headset to be used to many different type of devices such as Apple iPhone and PC.  Extremely comfortable.  When you’re on a call, The Plantronics Blackwire 5220 alerts you when you try to talk when muted.  Customizable for voice alerts to your own language. Soundguard protection for unwanted noise spikes. HD audio for natural voice sound.  Plantronics Blackwire 5220 USB becomes a high quality stereo music headphone when you're not on a call.

Key Features:

• Binaural headset style (dual ear)
• Certified for Skype for Business and Lync as well as Avaya, Cisco, Skype and other softphones
• Both 3.5mm smartphone and USB connection included
• Leatherette ear cushions
• Foldable ear cushions with carrying case
• User friendly audio prompts and inline indicator lights alert the user to connection
• HD audio quality sound
• Noise-canceling microphones
• Telecoil hearing aid compatible
• Digital Signal Processing (DSP)
• SoundGuard  technology provides advance audio protection against noise spikes
• Dynamic EQ automatically changes audio settings between phone calls and music
• Full 2 year warranty

Old Poly part # 207576-01

New HP part # 80R97AA

Also see Plantronics Blackwire C5220 USB datasheet