The SKROSS SOS Battery is the compact energy reserve for your USB devices. Wherever you are heading, even if there is no mains power, you can stay connected to the outside world!Seven hours" extra talk timeAs small as possible - as powerful as required. The SOS Battery from SKROSS is specially designed to keep communications intact while taking up the minimum space. It makes unavailability because of dead smartphone batteries just as much a thing of the past as offline tablet PCs and silent MP3 players. Your perfect companion on adventures and also indispensable in providing an energy boost between meetings. The SKROSS SOS battery, which was specially designed as an accessory to the SKROSS World Adapter MUV USB, can, of course, be charged using any conventional USB charger or with your laptop.Of course, like all SKROSS products, it reliably conforms with all relevant international safety standards - Swiss quality you can trust!