Bluetooth headphones won't play alarm

i have parrot 2.0 headphones. I use them on the commute home typically an hour on the train. I set an alarm to wake me up on the train. Since using headphones the alarm won't play through them. They noise cancel Pretty well so I don't hear the alarm.

IS there a way to allow the clock (alarm) app to play the alarm through the headphones, via blue tooth??