Poly Blackwire C5220 Binaural USB with 3.5mm Headset with features:
• Noise canceling microphone masks nearby talkers for maximum call privacy
• Available in hi-fi stereo with passive noise reduction.
• Include universal USB
• Connectivity to smartphone and tablet via 3.5 mm
• One-touch call answer/end, volume +/- and mute
• PC wideband audio with noise-canceling microphones for high-quality PC telephony
These are unused, all working, test at pickup with your device.
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