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)
Sennheiser HD 2.30i White Ear Headphones (Discontinued by Manufacturer)
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)
ADAPT 230 Enjoy flexible connectivity and great audio
Earphones Cable For Sennheiser HD 25-sp HD 222 HD 224 HD 230 HD Headphone Cable | eBay
Sennheiser SH 230 IP Monaural Wideband Headset 504012 B&H Photo