Eco 12540 ECO 1900mAh Power Case for Apple iPhone 4 & 4S – Retail Packaging – Black
The ECO Power Case for the iPhone 4/4S is a protective case with a built-in battery that doubles your phone’s standard battery life. Its low-profile design is lightweight and portable. LED lights on the back of the case clearly display the case’s power level -and the unique ON/OFF button lets you conveniently switch the case on and off as needed. It’s a perfect emergency backup power source for your iPhone!
Includes Micro USB Charging Cable
Protection: Short Circuit/Overcharge
Capacity: 1900mAh, Input: 5V, Output: 5V
Access to All Buttons & Features, Charging & Data Syncing Capabilities
Lightweight & Durable Design, Extends Battery Life, LED Battery Indicators