Bluetooth speaker / headphones only connects to calls , not audio. LG g3 and other phones.
1. go to settings
2. go to application manager
3. press the three dots in the upper right hand corner and select show system
4. scroll down to Bluetooth (gear icon) tap Bluetooth tap storage tap clear data and press ok go back one screen
5. find the other Bluetooth app (bluetooth icon) and repeat the process …tap Bluetooth tap storage tap clear data tap okay exit out of application manager
6. reconnect with your Bluetooth device this should allow you to stream music and not just accept calls