Tylt SAL710PCBK-T ENERGI Power Case with Kickstand for Galaxy S3 - Retail Packaging - Black uilt-in rechargeable 1800mAh Lithium Ion battery Provides up to 5 hours additional talk time Built-in metal kick stand LED status indicator lights Charge, sync, transfer data, and listen to music with the case on Galaxy S3 Power Case Protects Phone Charge on the Go Protects Phone Charge on the Go