Amazon.com: Sennheiser Presence Grey UC (508342) - Dual Connectivity, Single-Sided Bluetooth Headset for Mobile Device & Softphone/PC Connection, with Carrying Case and USB Dongle (Black) : Electronics
Sennheiser PRESENCE GREY UC with Carry Case and Dongle (Bluetooth) ML - Valcom UK
ADAPT Presence Grey UC Hear and be heard. Wherever.