Help Stream audio from computer through phone.

[Terry Blake]

I'm streaming audio to my Mac computer. I want to route it from there to my Note 4 and the (Etymotic) headset/earphones connected to it, so I can (a) hear a call come in, and (b) answer it without taking off the earphones. Is this possible? I'm hoping for a USB connection from the computer to the phone, or maybe Bluetooth, and I don't want to root the phone. Also, note that I'm not listening to a music collection on the computer; I'm watching Coursera / Udacity /EdX instruction videos on the web, in Safari. I can't believe no one else wants to do this.