Poly 3315 Blackwire Mono USB-C headset is a USB-C headset for your Windows PC or Mac. It's also equipped with a 3.5mm jack for mobile phones and smart phones. Compatible with most major softphones from Avaya, Cisco, Microsoft and many more. Poly Blackwire 3300 series is the perfect headset for large office VoIP deployment as well as on-the go for mobile users.
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