If your computer supports Bluetooth 5.0, you can easily connect multiple wireless speakers. As it is one of the features of Bluetooth 5.0 or later. While modern-day computers might come with Bluetooth ...
Right now I have this speaker system connected to the digital coaxial port of my ASUS A7N8X Deluxe motherboard. I have a second PC with a MSI KT2 Combo-L motherboard and SoundBlaster Audigy sound card ...