Capacity: Actual 4000 mAh
Built-in micro USB output, not need for separate cable(both for Iphone and Android)
Dual USB Output
Faster Charging (2.1Amp Output)
Ultra Slim Design for Easy Carrying，Super slim
OK to put in to wallet
It applies to Samsung, Apple 5/5s and other
For iPhones requires comes with iPhone Lightning Converter
Fashionable, stylish, light-weighted design and portable
High efficiency power conversion.
Compatible with most mobile phones charged by USB port
LED indication for Battery Status.