Amazon.com: Sennheiser Presence UC (504576) - Dual Connectivity, Single-Sided Bluetooth Headset for Mobile Device & Softphone/PC Connection, with Carrying Case and USB Dongle, Major UC Platform Compatible (Black) : Cell Phones &
Sennheiser HD 25 Plus Closed-Back On-Ear Studio Headphones | Sweetwater
Amazon.com : Sennheiser D 10 USB ML - US (506418) Single-Sided Wireless DECT Headset, with Direct Softphone Connection, Noise Cancelling Microphone, and is Skype for Business Certified (Black) : Office Products
Epos Adapt 230 Bluetooth Mono Wireless Headset w/ USB-A Dongle
Amazon.com: Sennheiser SC 135 USB (508316) - Single-Sided (Monaural) Headset for Business Professionals | with HD Stereo Sound, Noise-Canceling Microphone, & USB Connector (Black), Adjustable : Electronics