Similar with other extended battery iPhone 4 cases, Incase Snap battery case has integrated a rechargeable battery. The battery features 900mAh capacity that can extend the battery life of iPhone 4 up to 40%, and offer you extra standby time up to 120 hours, talk time up to 3 hours, or audio playback up to 16 hours.
And its hardshell construction with black soft-touch coating protects your iPhone 4 from bumps and scratches. The custom cutouts and built-in 30-pin connector allows you to access all iPhone 4 buttons and functions without removing the battery case. Besides, the integrated LED indicator can show you the status of battery. The control button lets you switch the case between on and off. And it also ships with a 30-pin to USB cable.
Incase Snap extended battery iPhone 4 case is priced at $59.95 USD. If you’re interested, jump to Incase official site (unavailable) for more details. Additionally, if you still need more alternatives, you might like to check the Mophie juice pack plus iPhone 4 battery case and more via “iPhone 4 case” tag.