Hardwired audio will give you the ultimate listening experience. However, wireless audio can definitely be beneficial in certain elements.
Speakers have to be placed in locations that are within transmission range. If you are at the end of the range, your connection may cut in and out. Wireless can’t carry the same information as a wired speaker can and therefore music may seem less full or rich.
Although there is not a wire required to connect the speaker to the sound system, the speaker still requires power and will need to be plugged in. Battery-operated speakers exist, but may not have the oomph you want.
There are many devices that emit radio waves. If any device is operating on the same frequency as your sound system, you could experience garbled signals as you listen to your music.
Wireless speakers are not as abundant as hardwried speakers, therefore having a minimal selection to choose from.