Introducing the Polymer Protective Back-Case with an Extended 1400mAh Battery Add-On, specifically designed for the iPhone4 series. This innovative accessory, identified by item number C23692BLACK, combines style and functionality to elevate your mobile experience. Crafted with durable polymer, the case offers exceptional protection for your iPhone4, safeguarding it from everyday wear and tear. The integrated 1400mAh battery ensures that your device remains powered throughout the day, making it an essential companion for those with a busy lifestyle. The sleek black finish not only enhances the aesthetic appeal of your phone but also complements any personal style. Perfect for individuals who demand both performance and elegance, this protective back-case is a valuable addition to your iPhone4, ensuring it remains charged and protected wherever you go.