Amazon.com: Sennheiser SC 260 USB MS II (506483) - Single-Sided Business Headset | For Skype for Business, Softphone, and PC | with HD Sound, Noise-Cancelling Microphone (Black) : Everything Else
Sennheiser SC 260 | USB Ctrl Headset For Lync | From £100.00 | 504407 | PMC Telecom
Epos Sennheiser SC 260 USB MS II Business Headset Binaural New | eBay
Amazon.com: Sennheiser SC 260 USB MS II (506483) - Single-Sided Business Headset | For Skype for Business, Softphone, and PC | with HD Sound, Noise-Cancelling Microphone (Black) : Everything Else