This is a 5-pack of reballed audio ic chips for the iPhone 7 and iPhone 7 Plus.  This chip also works for the 6s and 6s+, but they aren't replaced as often as they are on the 7 series.  These are good quality reballed chips, which I actually prefer because they use leaded solder, which melts at a lower temperature than the lead-free stuff.  This is important because using too much heat on this repair causes "searching/no service" issues.  The less heat that is used, then the better success rate without complications.