How to connect computer or laptop to portable speaker using Bluetooth

https://www.youtube.com/watch?v=J8dgSFkxEBU https://www.youtube.com/watch?v=C43N2w0Ua4I https://www.youtube.com/shorts/L8jSge1aF8k https://www.youtube.com/watch?v=FkHDDol-zJU https://www.youtube.com/watch?v=E6V79QPcXME