MAY DAY NEW CASE For iPhone 4 4S NEW 3D Avengers Marvel Iron Man IronMan Hard Case Cover Protective Armor With LED Flash 100% Brand New ! Fashion design! High quality! Income call alert LED-lighted arc reactor. Compatible iPhone Model: iPhone 4/4S Enable the LED flashes: Settings - General - auxiliary function - LED flashes to show reminder But this feature only applies to the phone is locked or sleep, when the call coming, LED lights will flash. Access to all ports and buttons with lid open or closed.