Sennheiser Presence Bluetooth Headset with carrying case, USB Dongle, and Sennheiser Enterprise Solution Presence Headband, Mobile Phones & Gadgets, Other Gadgets on Carousell
Amazon.com: BTD 500 USB Dongle : Electronics
USB ADAPTER WIRELESS DONGLE For Sennheiser GSA 370 Wireless Gaming Headset 615104332904 | eBay