How to block someone's iPhone Wi-Fi that's connected to a wireless radio?

Inconsiderate roommate is blaring his music way to loud. Guy doesn't think about others. I want to find a way to block his Wi-Fi sterio from connecting to his iPhone. Either a app. Or I will purchase something just to shut him up. Either ways to program his phone? Anyway to block his connection.

I don't think there's really any software that can mess up his Wi-Fi connection. If you're really stacked on money, feel free to buy a Wi-Fi jammer, but don't get your hopes up. They'll run you at least 200 bucks.

http://www.jammer-store.com/wifi-bluetooth-jammers-blockers.html

You can DoS his phone with LOIC, but you need the IP address of his phone.