Make sure the earphones are charged and turn on when the multi-function power button is held.
If the earphones are not charging or turning on please contact our support team using this link.
Check the following guides:
- My Cardio Air 5 earphones will not connect to my audio device
- Only one side is playing sound on my Cardio Air 5 earphones
If you are still experiencing problems with your Air# earphones please contact our support team using this link.