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MiLi Power Spring 4 HI-C23 Battery Case for iPhone 4

Finally a great looking iPhone 4 battery case that you don’t have to be embarrassed about. This one fits the iPhone 4 only and offers 1200mAh, which should about double your iPhone 4 internal battery and allow you not to worry about your beloved iPhone dying before the day is over.

  • Product Dimension: 124 x 62 x 15 mm
  • Standby Time: Up to 450 hours, Talk Time: Up to 7.5 hours on 3G, Up to 16.7 hours on 2G, Internet Use: Up to 7.5 hours on 3G, Up to 13.3 hours on Wi-Fi, Audio Playback: 45 hours, Video Playback: 15 hours
  • Package Contents: MiLi Power Spring 4, Mini USB cable, User’s Manual

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