The audio player you are using is flash based. That means the mobile device has to have flash installed. iPhones, iPads, iPod Touches do not for security and stability reasons. Some other mobile devices do not have it either.
You have a Premium Theme and Volunteers answering questions on the forum have no knowledge of premium themes. . You need to use the link to the Premium Themes Forum you find here> Appearance > Themes and post to that forum for support.