Our portable USB chargers, Cellularmega power banks, are intended for use with many USB-based products such as iPhones, iPads, SmartPhones, digital cameras, MP3/4/5 players, GPS, PSP, etc. With the USB power supply adapters you will always have a backup power source on hand for those long flights and car rides. If you have any questions about our portable chargers or need assistance with using them, please contact us either by phone or via live chat.