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
IMPACT DW Office ML - US Ensure premium audio for excellent call quality
EPOS / Sennheiser IMPACT DW 10 ML EU 1000529
IMPACT DW Office ML - US Ensure premium audio for excellent call quality
OfficeRunner Wireless Headset from Sennheiser | Headsets.com