My Cardio UltraFit DX earphones are not working

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 UltraFit DX earphones will not connect to my audio device
• Only one side is playing sound on my UltraFit DX earphones

If you are still experiencing problems with your Air# earphones please contact our support team using this link.