Turn off interfaces draining your battery life; it detects when your phone is idle and then it can power off:Bluetooth, WiFi, APN for background data exchange and sync mode, Airplane mode.Usefull to save battery in the night.Reduces 2G/3G mobile traffic.Periodic updates allows turning on interfaces after a delay, to allow background data syncing.Delayed power on for briefly looking at phone.Application translated to english, german, french, italian, dutch.