From the Manufacturer:. BLACKWIRE 5200 SERIES USB HEADSET. The Blackwire 5200 Series fits your busy workday. Easy to use, USB/USB-C and 3.5 mm connectivity options let you work on a variety of devices. And it's so comfortable, you'll be able to wear it all day.. ALL-DAY COMFORT AND UNIVERSAL CONNECTIVITY. When you need to wear a headset all day, the Blackwire 5200 Series has you covered in the utmost of comfort. Ergonomically designed, it's comfortable enough to wear all day, on your longest calls. To make it easier for you to work anywhere in the office, it also gives you the freedom to plug into the compatible device of your choice: All models are available with 3.5 mm connectivity and you can choose USB or USB-C.. OUTSTANDING AUDIO QUALITY FOR BETTER PRODUCTIVITY. Todays workplace can be noisy and filled with distractions. With the Blackwire 5200 Series, youll be able to hear and be heard more clearly, enjoy conversation privacy and be more productive. Thats because soft, conform