You can do this easily by using a wireless speaker kit. These wireless speaker kits make regular speaker wireless by sending the audio signals via RF (radio-frequency).
You will need to connect the transmitter to the receiver or amplifier. The transmitter sends the audio wirelessly using RF. Depending on the kit you chose there will be different options for inputting the audio signal.
Now that the transmitter is connected properly, it’s time to connect the wireless receiver to actually make regular speakers
wireless. Again, depending on the wireless speaker kit you choose and the speakers being used, things can vary a little.
Let’s make sure the receiver is receiving a strong signal from the transmitter. If the sound produced by the connected speakers contains static, sounds unclear, is delayed, etc. then you should probably adjust the position of the transmitter and/or receiver.