You can do both. I have my phone connected via bluetooth and play my music through the audio system. I also have a Sena headset connected to the slingshot system via bluetooth. (Note: I do not have the Sena bluetoothed directely to my phone, only to the SS audio system).You will find both options if you hold down the Mode button for 5 seconds. So if I am playing music and receive a call, I simply press the Phone button on the SS to talk and then press Mode button to disconnect. When the call is done, the music continues to play. It works great!