i-BRID Power Case with Rechargeable Battery for iPHONE 4 & 4S (Black Croc, PU Italian leather with Platinum trim) By Telemob. Protective fitting case beautifully designed with ultra slim look. Integrated LED indicator gauge on the back of the cover tells you exactly how much charge left at the push of the button. Charge and sync your iPHONE with your computer without removing it from the case. Adds up to 8 hours of talk time and 6 hours of browsing the web.