Symbol has appeared beside volume on Samsung TV

[Lexipedia]

I'm not sure how it happened but I noticed that my volume was a lot louder than usual at a lower number then I noticed a symbol beside the volume number display. It is a circle with five hexagons inside it. Does anyone know what this is? How do I get rid of it? I would appreciate any help!

[ChrisM]

Hi @Lexipedia 

What's the model code and software version of your TV? Go to Menu > Support > Contact Samsung (older TV's), or alternatively, Home > Settings > Support > About This TV (newer Tv's).

Are you able to send us a screen shot of the symbol?

[paulo32]

I have this also , can't find anything on internet about it