Poly Blackwire 3310 USB A Wired Mono Headset Boom Microphone 94dB Sensitivity Certified for Microsoft Teams Blackwire 3300 Series provide a best-in-class audio experience in a headset built for enterprise deployment. Even better, workers want to wear it - so your investment pays off. The great appeal of the Blackwire 3300 Series is apparent at first sight: It has a modern, stylish design. Its microphone boom is flexible so workers can customise the fit. And the headset is fully adjustable with a comfort padded headband, pillow soft ear cushions, and 180-degree pivoting speakers. Not only that, it sounds as good as it looks - with high-quality audio youd expect from Poly. And if its starting to sound expensive, weve got good news. Blackwire 3300 Series is priced to fit your budget.Please note this item is non-returnable, see our returns policy for more information.