The iDance Groove 216 is an 8-inch battery speaker that delivers 100 watts of power. You stream music wirelessly via Bluetooth from a tablet or smartphone. This makes it easy to play music via YouTube or your favorite streaming service. You connect an audio device to the speaker via an aux cable. This way you play music from any sound source, such as an MP3 player. Do you prefer to play music from a usb stick? This is possible through the usb input. You sing karaoke with the included wired microphone. This way you sing along with your favorite classics. With the built-in light show you can turn any room into a disco.