Keystone ECO™ AmigoCase Blends Form, Function, and Fashion for iPhone® 4

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A separate ultra-slim protective case for iPhone 4 and a wearable battery charging case for on-the-go lifestyles

By keeping the auxiliary battery in the clip-on AmigoCase, we honor the beautiful design and integrity of the iPhone 4.

Concord Keystone unveils a new look and functionality to battery charging cases for iPhone 4. The sleek and chic AmigoCase is a battery charging case that comes with a separate protective case. The protective case can easily be inserted in the AmigoCase for iPhone recharging and protection.

The innovative clip-on AmigoCase serves two purposes – recharging iPhone and providing full protection. While in the AmigoCase, iPhone connects to the auxiliary battery for recharging and its on/off switch allows the user to decide when to recharge. Its unique swiveling locking/unlocking mechanism allows the protective case to seamlessly separate from the AmigoCase, and the external battery continues recharging iPhone when it is inserted back into the AmigoCase.

“The design of the AmigoCase addresses the sensibilities of iPhone users," said Urs Stampfli, CEO of Concord Keystone. "By keeping the auxiliary battery for iPhone 4 in the clip-on AmigoCase, we honor the beautiful design and integrity of the iPhone.”

The AmigoCase comes with a fully encased rechargeable 5500 mWh Lithium-Polymer battery that can extend the battery life of iPhone. The AmigoCase alone or with iPhone inserted can be recharged by connecting to a computer through a USB cable, or by using a wall adaptor with USB port. The battery check button and LED status indicator allow the user to track the charge level of the AmigoCase. The built-in clip enhances the portability of the AmigoCase. Just wear it on your belt or clip it on your bag, AmigoCase provides a power source and protection for your iPhone.

The AmigoCase comes in a black or white finish, and the protective case is available in a variety of translucent colors, including Smoky Quartz, Frosted Crystal, Blue Topaz and Pink Sapphire.

The AmigoCase is available now on our website for $79.99 MSRP.

For more information about AmigoCase, please visit

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Lauri Aibel
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