Crystal-clear conversation |Poly DA Series digital adapters keep call center employees sounding crystal-clear from home or in the office. With easy USB-A or USB Type-C®? connections, they adjust audio to each specific Poly headset, offering quality calls.Flexible & future-proof|Preserve your tech investment with the Poly DA Series. Not only do these digital adapters include USB-A and USB Type-C®? access right on the cable, they're also compatible with all your new and legacy Poly headsets and accessories.Peak user experience|Call clarity isn't just a dream. Poly DA Series offers intelligent headset recognition that dynamically tunes audio performance. Stay distraction free to maximize productivity.Features | Inline controls|With just one simple click, you can instantly mute all audio and visual transmissions - whether it's a phone call, a video conference, or a virtual meeting.Connection Flexibility|Answer soft-phone calls from any PC, no matter what kind of USB port you have. Built-in USB-A and USB Type-C® connectors on the same cable.Smart headset recognition|Get incredible call quality on any Poly headset via intelligent headset recognition that adjusts audio performance to the specific headset.Quick disconnect|Walk away from your desk with a click: Poly Quick Disconnect technology works with any Poly QD equipped headset.Acoustic hearing protection |SoundGuard DIGITAL featuring advanced acoustic limiting, including daily noise exposure, G616, and anti-startle functionality.Certified for Microsoft Teams |Full Microsoft Teams certification takes your Microsoft Teams experience to the next level with a button for instant access to the app and more.