Unique Gomadic Portable Rechargeable Battery Pack for the Microsoft Zune HD - High Capacity Gomadic

• Very easy to operate. Simply connect Microsoft Zune HD, press activation button on pack, and charging begins. Quick start guide included.
• Specification: Internal Battery (3400mAh lithium polymer), Input port (miniUSB), Output Port (Standard USB), Onboard Circuit Design (Microsoft Zune HD Specific), Dimensions (4.0 X 2.0 X 0.5 inches), TipExchange enabled (Yes)
• Integrated circuitry tailors output voltage and charging current to exact specification of the Microsoft Zune HD (accurate to 0.1v).
• Continue to use your Microsoft Zune HD for hours OR recharge it on the go without being tethered to a wall outlet
• Built with high capacity lithium polymer rechargeable battery technology (17 Wh / 3400 mAh) in a compact design.

Shipping was very fast for being in a different country. I have used this to charge my ipod classic and my zune.. Wonderful. Only thing I would say is use your own plug in for your zune and ipod. the little plug in for the zune that it comes with does not really charge. I will see how well it really works when i take a 16 hr flight next week..

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