You can "bank" on a successful promotion with the help of this power bank! This mini power bank is a rechargeable, back up battery for use with all smart phones and electronic devices. These chargers each have a capacity of 2200mAh. Package includes: USB cable and white gift box. Battery is UL Certified (takes approx 3 hrs to charge when empty), materials are RoHS, input is 5V/1A, and item passes all FCC requirements. What a great way to "recharge" your brand name!