Ensure volume is set to maximum through Mobile Phone and ear buds both

  • Adjust the volume from Mobile Phone and ear buds both

 

Use other music APP/music player as different songs/videos app have different audio quality with different Mobile Phones

  • Different music APP, customer can download from APP Store

 

Play same song/video with other APP and Mobile Phone

  • Other APP have different quality of music

 

Ensure cleaning of eartips. Clean it carefully and validate this by image

  • not use any sharp object to clean ear tips