HP Poly BW 3320 Stereo USB-C HS +USB-C/A 80033865 8X219AA Product Description: Poly Blackwire 3320 - headset Product Type: Headset - wired - USB-C Compatibility: Mac, Windows Recommended Use: Computer, portable electronics Colour: Black Headphones Form Factor: On-ear Connectivity Technology: Wired Sound Output Mode: Stereo Audio Specifications: Sensitivity 116 dB Impedance: 32 Ohm Microphone: Boom Controls: Answer/end, mute, volume Software Certification: UC certified