Sennheiser SC 230 Monaural Pro USB Headset w/ Call Control 504403
Sennheiser SC230 USB MS II Monaural Headset w/ Inline Controls 569827 | eBay
Amazon.com: Sennheiser Enterprise Solution SC230 Circle Series Profession Headset Black : Electronics
Sennheiser SC 230 Headphones, Black - Walmart.com
Sennheiser SC 230 USB MS II (506482) - Single-Sided Business Headset | For Skype for Business, Softphone, and PC | with HD Sound, Noise-Cancelling Microphone (Black)
User manual Sennheiser SC 230 MS II (English - 2 pages)
Sennheiser SC 230 USB MS II (506482) - Single-Sided Business Headset | For Skype for Business, Softphone, and PC | with HD Sound, Noise-Cancelling Microphone (Black)