Bluetooth Adapter PC, Bluetooth Dongle USB 5.1 EDR for Laptop, Desktop, Headphones, Mouse, Keyboard, Speaker, Printer, USB Bluetooth Adapter for PC, Windows 11/10/8.1, Plug & Play. 【Bluetooth 5.1 Adapter】Compared to the USB Bluetooth 5.0 adapter, the Bluetooth 5.1 adapter optimizes power consumption and stability with better transmission speed and anti-interference ability.
eBay