How to disrupt a bluetooth speaker with only a computer?

One of my brothers got a speaker he can connect to his iPhone and play music from it. What's worse is that his favorite music genre is Heavy Metal/Scream-o, and he loves pumping the speaker all the way near the loudest volume.

Out of all the genres in the world, he chooses possibly the worst/annoying one. I was wondering if there's a possible way I could temporarily jam his speaker signal to his iPhone? It's Really annoying, I'm a man of peace and quiet! If anyone reads this, I'm sending out an SOS because I'm in desperate need here. My OS is a Mac, v10.9.1. Processor is 2.5 GHz Intel Core i5. Memory is 4 GB 1333 MHz DDR3. Just in case that information is needed.

This is no laughing matter, someone help me… Please.

Try asking him to stop

Give him some nice headphones and ask him to have some consideration for others.

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