Levitating speakers are nothing new. A bunch of companies have been making different versions of them over the years. This Glowing Death Star Levitating Speaker is also worth a look. It hovers over the base and plays music from your smartphone or tablet. It also has lights to glow in the dark.
As you can see in the above video, this speaker is easy to levitate and keeps spinning as it plays your music. You can find out more about it here.