I have paired the Klip Xtreme UltraVox Bluetooth headset to my BLU phone. When I made a call, the audio is working fine. But if I use YouTube or a video on the phone, it comes through the speaker.
How to route the audio through the Bluetooth headset?
Go into the Settings app on your phone and choose Bluetooth. You'll see a list of paired devices. (Alternatively, from the quick settings panel, tap the Bluetooth label, not the icon, and then click More settings. They both get you to the same screen.)
From that screen, find your headset in the list of paired devices, and click the gear icon next to it. A dialog comes up where you can edit the name of the headset, and below that it says Use for. In that list, turn on Media audio, and click OK.
