Description: The Sabrent Power Bank High Capacity 6600mAh gives you the ability to charge your iPhone 4 three to four times, Charge your smart phones and tablets at top speed. Max Output 2.1A. Perfect for home use, road trips, long flights, picnics, camping, outdoor parties, BBQs, etc. Features: * Battery Type: Lithium ion battery * Battery Capacity: 6600mAh * Input: DC 5V 800-1000mA * Output: DC 5V 1000/2100mA * Dimension: 61*25*100mm * Applicable facility: Phone, Mp3/4, PDA, DC, DV, PSP, iPhone What"s in the box? * External backup battery (6600mAh) * Micro USB Cable * User Manual Warranty: This product comes with a one year warranty. In order for us to properly assist you, please follow these simple instructions: Go to www.sabrent.com/support and click "Submit a ticket". Submit your ticket. You must include your Amazon Order ID# number in the subject line.