The Mango FatCat FC4200 gives versatile and compact power for people on the go. With over 3 times the battery power of a smart phone, the stylish FC 4200 is the lightest, slimmest charger available for smart phones. The FC 4200 embodies the latest in ultra-thin lithium polymer technology, matched with advanced charge control circuits, which recognize and supply the power needs of your device. Supports iPhone, all popular cell phones, smart phones and handheld electronics such as MP3 players, gaming devices, GPSs, PSPs, and PDAs. Also provides emergency power for growing range of FatCat lights and radios. Comes 65-70% pre-charged for immediate use out of the box. Can be charged via any USB as well as through FatCat wall and car adapters and FatCat Solar panels. Retains 80% of its charge after a year (if unused), so you can depend on it when you need it the most. The advanced electronics built into the 4200 embody over-charging, over-discharging, over-current and short circuit protection. An LED indicates the level of charge: 1 segment lit = 25% charged; 2 segments = 50%; 3 segments = 75%; all 4 segments = 100%. Specifications – Input voltage 5.0 to 5.5V, Output voltage DC 5.5 +- 0.2V, Maximum output current 700mA, Maximum input current 800mA, Time required to charge Card 4-7 hours (depending on charging current), Cycle life up to 500 times, Dimensions 4″ x 2.4″ x 0 .5″, Weight 4 oz. Pack includes – FatCat 4200, Master cord with two female connectors, Travel case, Tips for all popular cell-phones smart-phone, MP3, PDAs, PSPs, etc. 2-year limited warranty. Customer service available toll free on 877 886 2646 from 9am to 4pm EST. Color – Red.