Hello i would like to know if the VMS2 controller has a built in sound card
What are you going to connect it to to?
Can you run Karaoke using a VMS2?
I am sending this to info @americandj.com to answer.
Can it operate solely with the USB cable or does it need to use the AC adapter to get the supply of energy?
The VMS2.0 requires the powersupply as it does not operate off of USB power.