The output looks like Micro-USB Apple don't use Micro USB cable. You would have to buy an adapter to use this as there is no USB A output.
asked on Nov 12, 2013
Sorry for the confusion. The battery pack is charging a battery case that the phone is in on the deal photo. The battery pack has a micro-USB connection and could only be used with this connection.
Kristi D. from Groupon replied on Nov 13, 2013