Bluetooth Adapters
From Amazon
Gembird btd-mini5 Bluetooth Adaptor and Network Card – Network Accessory (Black, Silver, Wireless, USB, Bluetooth, 2.402 – 2.48, Windows 10 EDUCATION, Windows 10 EDUCATION X64, Windows 10 Enterprise x64, WI)
Compadvance
MicroConnect Usb Bluetooth V4.0