These headphones are just what any school needs. Each ear cup has a volume knob for individual level changing, which works great for numerous educational applications. The ACM-7002 works with MP3 players, the iPhone, any iPod, and most computers. While the headphone's drivers are of impeccable quality, their sound maxes out at a safer level that is suitable for children's ears. After all, they're going to be using their ears for a lifetime, so why blow them out now?