This high quality bag have 3 basic functions namely Anti radiation with this bag it can prevent you from being damaged by the wave radiation that produced by Tablets Anti degaussing when you put your magnetism card such as ID card bank cards into the bag it can aviod magnetism ...This high quality bag have 3 basic functions namely Anti radiation with this bag it can prevent you from being damaged by the wave radiation that produced by Tablets Anti degaussing when you put your magnetism card such as ID card bank cards into the bag it can aviod magnetism lost and information leaking Anti signal with this function it prevents people from being tracked and if you don't want to answer the phone you can put the Tablet in the bag then the Tablet will tell Calls can not be connected.