Call Guard prevents accidental disconnects and mutes during a phone call, by covering ‘End Call’, ‘Mute’ buttons with a semi-transparent cover. If you want to use ‘End Call’, ‘Mute’ or ‘Task-bar’ buttons, simply swipe over the semi-transparent cover to remove it. And with another simple swipe you can get the cover back. Call Guard automatically covers ‘End Call’, ‘Mute’ & ‘Task-bar’ buttons when you make / receive a call. Compatible with S^3 / Anna / Belle Smart Phones.