ELEGIANT Portable USB 4X AA Battery Power Bank Charger Case for Note4 3 S5 iPhone 6 iPod 100% brand new and high quality 4X AA battery External emergency charger. Battery requirement:4 X AA Battery(not included) Portable design,easy to carry around With a USB interface, supports all devices that get charged via USB cable(USB cable not included), such as MP3/MP4 player, cellphone, iPod, iPhone, etc.