Plantronics Blackwire 5210 USB (monoaural, single ear) equipped with both USB-A and 3.5 mm smartphone/mobile device connector.  Ideal for users who needs PC and multimedia communication.  Plantronics Blackwire 5210 is very comfortable with leather ear cushions, ergonomically designed with functional controls.  In addition, Plantronics' new Dynamic Mute Alert senses and alerts you when you try to talk when muted. Customizable voice alerts to your language of preference.

Key Features:

• Monaural (single ear) headband
• Certified for Skype for Business and Microsoft Lync
• Compatible with softphones from Avaya, Cisco, Skype and many others
• Both 3.5mm smartphone and USB-a (regulard USB) connection.  Both included
• Leatherette ear cushions
• Foldable ear cushions with carrying case
• Telecoil hearing aid compatible
• One-touch call answer/end, volume +/- and mute
• User friendly audio prompts and inline indicator lights alert the user to connection, mute and volume status Plantronics’ Signature Audio
• Wideband audio with noise-canceling microphone
• Digital Signal Processing (DSP)
• SoundGuard  technology provides advance audio protection aginist loud noise spikes
• Dynamic EQ automatically adjusts audio settings between voice calls and music
• Plantronics 2 year warranty

Old Poly part # 207577-01

New HP part # 80R98AA 

Also see Plantronics Blackwire C5210 USB-A datasheet

Important: this is the regular size USB-A connector (not the smaller USB-C)