Regarding your wireless speaker, it doesn't use the same wireless technology (WiFi) that your laptop uses to connect to a wireless network. The wireless system your speaker uses is not compatible with your laptop's WiFi.
If the speaker uses Bluetooth and your laptop has Bluetooth built-in, it should work provided you enable Bluetooth on your laptop and you "pair" it with the speaker. If your laptop doesn't have BT built-in, you can buy a BT USB adapter.
If the speaker uses some other type of wireless technology (as used on some keyboards & mice) it should have been supplied with a matching USB wireless receiver to plug in to your laptop.