HP Poly BW 3225 USB-C HS +3.5mmP USB-C/A 80033865 8X229AA Product Description: Poly Blackwire 3225 - headset Product Type: Headset - wired - 3.5 mm jack, USB-C Compatibility: Mac, Windows Recommended Use: Portable electronics, computer Colour: Black Headphones Form Factor: On-ear Connectivity Technology: Wired Sound Output Mode: Stereo Audio Specifications: Sensitivity 90 dB Impedance: 32 Ohm Signal-To-Noise Ratio: 118 dB Microphone: Boom Microphone Operation Mode: Omni-directional Microphone Noise Cancelling: Yes Controls: Mute, volume, redial, answer/ignore/end/hold Software Certification: Certified for Skype for Business, Avaya Certified, Cisco Jabber Certified, UC certified