This Mega-Charge power bank is a sure-fire way to bank on your brand during the next promotional campaign! Available in several colors and measuring 3 1/2" x 1 1/2", this useful giveaway features a 4400 mAh lithium ion grade-A non-recycled battery, a USB output and a micro USB input (cord included) to easily charge your phone, tablet and more. Output: 5 volts/1 amp. Your device's charging cord is required for use. For maximum brand exposure, customize with an imprint of your company name and logo.