Santok has unveiled the latest in its line of STK iPhone accessories, the STK iPhone 3G Power Pack. The device is designed as both a premium quality genuine-leather flip-case, and a 3G power pack with a rechargeable Li-ion polymer battery. It offers a maximum of 300-hours of extra standby time, 7-hours of talk time, or 24-hours of music playback for the iPhone. To charge the device a mini-USB cable has been included, which allows users to charge both the power pack and their iPhone simultaneously.

In addition to protecting the iPhone from scrapes and scratches, the case also has a hole for the camera, so users can still take pictures without having to take the phone completely out of t he case.

The STK iPhone 3G Power Pack is available for purchase and priced at approximately $34.