Review on 🔌 ASUS USB-BT400 USB Bluetooth Dongle Receiver - Compatible with Laptops and PCs, Plug and Play for Windows 10/8/7/XP. Supports Printers, Phones, Headsets, Speakers, Keyboards, and Controllers in Black. by Stanislaw Jastrzebsk ᠌

Few people know, but the Bluetooth protocol is quite difficult to implement and very often not supported as expected. It has such a thing as standard profiles, that is, subprotocols for exchanging data for specific purposes (for example, Handsfree headset, wireless headphones, mice and keyboards, etc.). But if you have a non-trivial exotic device, you need this adapter. In my case, this is the Interaxxon Muse neural interface. We tried different Bluetooth adapters, and now for us Asus BT-400 is a non-alternative model, with a guarantee the device is caught and works only through it.