USB Bluetooth Adapter for connecting RS232 devices via Bluetooth
2 X Bluetooth V4.0 USB Adapter CSR chip Bluetooth adapter Bluetooth 4.0 Adapter Mini Nano Wireless Dongle Stick EDR USB 2.0 Dual-Mode Highspeed ship from US - Newegg.com
USB Bluetooth 5.0 Adapter/Dongle for PC - Bluetooth & Telecom Adapters | StarTech.com