The Mili will give you the freedom to use your iPhone without the daily worries of running out of battery life! Enjoy your iPhone for voice, music, video, games and business applications with extended, stable power. You can now experience up to two days or more of uninterrupted iPhone power, depending on your usage. We know you only want products that compliment your iPhone"s appearance. So our battery has been designed to appeal to all of your senses. The MiLi is made of the highest quality materials and integrates the best in technology. With the MiLi, you can have portable power, anywhere, anytime you need it.Double your iPhone Battery Life The MiLi Power Pack has ample capacity to more than double the battery life of your iPhone! According to Apple specifications, the iPhone has a talk time of 5 hours on 3G and 10 hours on 2G. The MiLi provides you an additional 6.5 hours of talk time on the iPhone 3G and 13.5 hours of talk time on iPhone 2G. When the iPhone is idle, the MiLi provides you with 390 hours of additional standby time. The MiLi Power Pack enables you to talk and surf twice as long! Advanced Battery TechnologyThe MiLi utilizes high quality lithium-polymer battery technology. This allows the MiLi to have a small, lightweight package with an extremely powerful, high capacity battery. The MiLi iPhone battery offers an impressive 2000mAh of charging capacity.iPhone CompatibilityThe MiLi Power Pack has been "Works with iPhone" certified to meet Apple performance standards. The iPhone battery has been tested for Compatibility with iPhone 3GS, 3G and iPhone 2G / 1st Gen.Haven"t upgraded your iPhone yet? Not to worry, you can use the MiLi with your iPhone 3G and continue using it when you upgrade to iPhone 3GS!