A:AnswerYes, they can, however, the cord is quite short, so if your tower is not at a close distance, any movements will pull them off your head or off the tower.
A:AnswerSeeing as how you asked this question over 4 months ago you might have already made your purchase. For what it's worth, I'm currently using these headphones with my iPod Nano and an old Sony Walkman with AM/FM radio.
A:AnswerYes, you can, however, the cord itself is pretty short, so if you need to reach from deck to deck or off your setup they're going to yank off. I would recommend them if you were to practice DJing at home.
