You never know when a device might suddenly run out of power. So grab one of these slim credit card power banks. This ultra slim power bank is smaller than a deck of cards, making it pocket friendly and easy to carry in purse, backpack or even back pocket. Get your logo imprinted and make your customers see your brand every time they recharge their mobile device by simply plugging the USB cable into their cell phone, iPad or tablet. Features: Battery: Polymer lithium battery x 1pc Capacity: 2500mAh Input: 5V1A Output: 5V1A Charging time: about 4-4.5 hours Access: 1xmicro input / built-in micro cable and iphone adapter Note: FREE SHIPPING INCLUDED Price Includes: Free setups Free full color imprint on 1 location Free standard gift box (white tuck box) Free micro USB cable Free ground shipping to 1 continental US commercial location