A:Answer as for a karaoke, yes and no? yes that you can sing thru it, as well as play music thru it and still use the mic. however it wont show works like a karaoke machine would normally do. as for mics, it has 1 3.5mm jack. you can get a splitter but then your mics would both be the same volume. unless you have a mic with its own volume button. you can use cd players and what not but thru the aux cord. it is Bluetooth.