VocoProHERO-REC BASIC Home Karaoke System

In changing the key...is there a front readout to let you know what key you changed it to? For Example -1, -2, -3 or +1, +2, +3 etc...

does the antenas and cords besides the microphone cords come with this package???

Can it be connected to a laptop so you can play songs through Hoster or other DJ programs?

Will this system play video cds