Forester&reg; Baseus Ultra Thin Auto Wake up Sleep S View Flip Side Cover Folio Cover Case for Samsung Galaxy S4 Zoom C101 / New Age Leather Case (Yellow) Features on auto sleep/wake-up function to preserve the life of the battery. Respond to calls and alarms without opening the cover Specifically-cut for access to all buttons and ports Create fashional and personality element Would let your phone have a special signal Interactive viewing window on the front cover allowing you to see important information on your phone without opening the case :Signal and Battery Status, Messages, Missed Calls, Time/Date, Current Music Details (if using Music Player)