Bluetooth won't play media on Iphone?

I bought a new Samsung HM1300 and it will work with phone calls and anything that utilizes the mic (voice control, google chrome etc.) but Spotify and videos I watch and anything comes out of the Iphone speakers. It is an Iphone 4 and I have Verizon not sure if any of that matters. Anything I can do to fix this (I've tried rebooting phone and BT headset). Main reason I bought it is to listen to music without headphones at work. Headphones get in the way.

Estimation is broken

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