Amazon.com: Sennheiser DW Pro 1 Single-Ear Wireless Office Headset with DECT 6.0. Includes Noise-Canceling Microphone. Works with PC and Mac : Electronics
EPOS I SENNHEISER SD Office ML - headset - 1000561 - Wireless Headsets - CDW.com
EPOS I SENNHEISER IMPACT SDW 5033 - wireless headset system - 1000589 - Wireless Headsets - CDW.com
Sennheiser DW 30 HS Dual Ear Wireless Office Headset with Base (Dock) DW BS - US | eBay
EPOS/SENNHEISER Impact SC 662 ED ML Wired On-Ear Headset 1000557