Double your power and play time with this iPhone external battery case. Specifically designed for iPhone, this case is compatible with 2G, 3G and 3G(S) versions. This powerful battery case can boost your internet use up to 6.5 hours on 3G and up to 8 hours on Wi-Fi. Audio play and video play can be increased up to 31 hours and 9 hours respectively.

• iPhone external battery case.
• Black case featuring blue inner surface design.
• Completed with a sleek and modish finish.
• Compatible with 2G, 3G and 3G(S) versions.
• Powerful battery charger that extends the life of the phone battery.
• Double your power and play time with this iPhone external battery case.

Technical specification:

• Product dimension: length 126 × width 66 × thickness 23mm.
• Product weight: 79.5g
• Product compatibility: iPhone 2G, 3G, 3G(S).
• Input: DC 5V 0.5A.
• Output: DC 5V 0.5A.
• Capacity: 2000mAh.
• Standby time up to 390 hours.
• Talk time up to 6.5 hours on 3G.
• Up to 13.5 hours on 2G.
• Internet use up to 6.5 hours on 3G.
• Up to 8 hours on Wi-Fi.
• Audio play up to 31 hours.
• Video play up to 9 hours.