Slim Power Bank 5200mAh Portable Backup Battery Urtrathin Charger Mobile Power Source for Smart Phones, iPhone 6,GoPro Hero 4,3,3+,2, Tablets Compact and lightweight design(less than 5oz), fits in to any pocket and easy to carry on the go Constructed using safety Lion-polymer cells and premium microchips to ensure safety worry-free use 5200mAh capacity with high conversion rate, charges iPhones 1 more times and other large capacity smart phones like Samsung note 3 almost 1 times Long lifespan with over 500 recharging times, LEDs display how much juice you've got left Package contents: iMatey external battery, Micro USB cable