How to get sound to both headphones and USB speakers? I have a USB Speakers and I want to record the sound from WNYC Radio to listening to it offline on my iPhone.

I'm able to alternate them, but not listening to both at the same time.

Can anyone please advise?
I believe Audio Hijack from Rogue Amoeba does this, but I'm not certain. They have a free trial, so you can make sure that is possible before you buy it.