Mophie Juice Pack & External battery pack for Apple iPhone 4/4s - Black (2000 mAh)

Key Features and Benefits:

• Battery extender and case in one
  The Juice Pack Plus for iPhone combines rechargeable external battery power concealed inside of a protective form-fitting case. It offers the full protection of a hard-shell case with an ultra-thin, light-weight, low-profile design and shock-resistant band.
• Standby/charging switch
  Features a simple toggle switch allows for standby and charging mode so you only have to use the Juice Pack Plus battery when you need it!
• Charge and sync
  Charge and sync your iPhone to iTunes without removing it from the Juice Pack Plus by using the included USB cable.
• Protective rubberized band
  The Juice Pack Plus provides a comfortable ergonomic design with the complete protection of a dual-injected hard shell case with protective shock-proof rubberized band.
• Status indicator
  The integrated LED status indicator on the bottom tells you exactly how much "juice" is left at the push of a button. It also indicates the charging status so you know before you go.
• Acoustic sound enhancement
  The case design acts as a virtual speaker box, redirecting sound from the bottom of the iPhone to the front, resulting in a richer, fuller sound quality.