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*End of line stock* The Blackwire 5200 Series fits your busy workday. Easy to use, its USB-A and 3.5 mm connectivity lets you work on a variety of devices. And it’s comfortable enough to wear all day, with hi-fi stereo that surrounds you in sound. When colleagues are around, the headset masks out nearby talking for greater focus. When you’re on a call, Dynamic Mute Alert senses and alerts you when you try to talk when muted. You can also customize voice alerts to your language of preference. Learn More