Poly Introduces the Blackwire 8225 with Advanced Hybrid Active Noise Cancelling and Acoustic Fence Technologies to Dramatically Reduce Distractions Wherever You Work
Amazon.com: Global Teck Bundle of Plantronics Blackwire 7225 Headset - Stereo - USB Type A - Wired - 32 Ohm - 20 Hz - 20 kHz - Over-the-head - Binaural - Supra-aural - Noise Cancelling Omni-directional Microphone : Electronics