Unu Exera System - Charging dock + iphone 4 4s battery case - Infinite power system

uNu's exera dual charging dock combo pack is a portable and lightweight battery charger bundled with two 1700 milliamp hour batteries. Coupled with the original exera case it can provide your iPhone with three hundred percent additional power. It simultaneously charges two batteries anytime and anywhere. Through the standard USB input. While still offering charging capability form it own USB output port. The DUO charging dock eliminates that late night headache of trying to decide wheter to charge your batteries or to charge your phone. Simply dock your batteries and connect your phone and therefore will be ready in the next morning with three hundred percent extra battery life to tackle any tough day. This one stop charging solution can also unleash your iPhone from corded charging. You can simply swap the drained battery inside the exera case with a fully charged one from the dock. You no longer need to leave your iPhone behind and tie it to a wall charger. Hence, you will never ever miss important phone call or text message due to charging. No matter who you are, what you do, where you stay, you won't run out of power with uNu. uNu your most reliable portable power source. Visit www.myunu.com to learn more.