The box Smartphone charger is capable of charging a smartphone up to twice and even provide your tablet with an emergency charge Thanks to the intelligent charge circuit, the charger automatically identifies the correct power level for the connected USB device providing both a safe and efficient charge (1A-2.4A). Thanks to the Lithium Polymer battery, the box Portable Smartphone charger is both incredibly slim and lightweight, perfect for use on the go. Compatible with Suitable for all USB powered devices including Smartphones, Tablets, Digital Cameras, Gaming Devices, GPS and many more. Handsets. Cable length 0.3m.