BLACKWIRE 3300 SERIES 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 customize 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 you''d expect from Poly. And if it''s starting to sound expensive, we''ve got good news. Blackwire 3300 Series is priced to fit your budget. Mono or stereo OTH (over-the-head) options Choose the variant for your device: PC USB-A or USB-C and/or 3.5 mm for mobile connectivity Corded simplicity and reliability Easy to use: no training necessary