Poly Blackwire 7225 Wired Usb-a Headset (plantronics) - Black - Dual-ear (stereo) Headset - Connect To Pc / Mac Via Usb-a - Active Noise Canceling : Target
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Wantek Mono Call Center Headset Headphone With Mic For Cisco Ip Phones 7942 And Plantronics M10 Mx10 Vista Modular Adapters - Earphones & Headphones - AliExpress
Logitech may be close to buying Plantronics (updated) | Engadget