The power is from the mains supply, through a variable length cable connected to a suitable plug-in power supply. The operation is also at a voltage of only 12V to guarantee safety of use.
The lights can be set by the user, both for the range of colors and for their intensity, and can be changed remotely via a dedicated APP.
It has an internal microphone that allows you to work with the sounds within the room or an AUX input to connect it directly to the audio source.