COMPATIBILITY: The Discover D315 adapter works with the following models: Plantronics cs50, cs55, cs351n, cs361n, cs70n, cs540, cs530, cs510, cs520, C054, C052, Jabra pro 920, gn9125, gn9120 or Sennheiser D10 wireless headsets. | HOW IT WORKS: Simply plug any of the compatible models into the D315 adapter, like you would to a desk phone. The other end has a USB cord that then plugs into your computer and you now have a computer headset. Simple as that. | INLINE CONTROLS: Easily increase/decrease your hearing volume or mute/unmute the microphone from the D315 adapter. DOES NOT ENABLE REMOTE CALL ANSWERING. Calls will need to be answered from the computer, then you can walk wirelessly. | PLUG AND PLAY: No additional software is required | PEACE OF MIND: You're covered with a 1 year advanced replacement warranty for peace of mind

PLUG AND PLAY: The Discover D713U plugs into your computers with USB-A ports for your business phone calls and video conferencing applications. No additional software required. | ALL DAY COMFORT: If headband type headsets give you headaches or get tangled in your hair, the Discover D713U is for you. Sleek earpiece design with 3 included ear tips for all day comfort. | CRYSTAL CLEAR CALLS: Rather than using your computer's speaker and microphone, the D713U gives you a professional quality microphone and speaker for more productive calls. | CALL CONTROLS: On the cord of the D713U is a volume up, volume down and mute/unmute so you can easily adjust volumes and mute your calls when needed. | PEACE OF MIND: You're covered with a 3 year advanced replacement warranty incase of an accident or product defect

COMPATIBILITY: *NOT compatible with desk phones that don't have a compatible USB headset port* The Discover D722U is a wired USB noise canceling headset for office professionals who need a headset for their computer softphone applications like RingCentral, Teams, Avaya, Jive, Vonage, Nextiva, 8x8, Voice Dictation and more! USB-A and USB-C connectivity comes included. | ALL DAY COMFORT: New gel infused memory foam ear cushions will keep you cool and in comfort for hours! | CRYSTAL CLEAR CALLS: Dual speakers and a noise canceling microphone with wideband audio ensures you can hear and be heard crystal clear, even in loud working environments. | DURABILITY: Kevlar reinforced cord and strong plastic protects against drops and sharp objects or your desk chairs. | PEACE OF MIND: You're covered with a 3 year warranty for peace of mind- 3x the warranty of most other headsets