There are two installation videos available. The one at the top is a plug-and-play video, and if you scroll down, you can view the video for downloading and installing.

QGOO 5.4 Bluetooth Realtek Installation Video-plug and play(Support Windows 8.1/10/11). ↓

QGOO 5.4 Bluetooth Realtek Installation Video-Download driver installation(Support Windows 7/8/8.1/10/11).↓