Gomadic Portable AA Battery Pack for the Insignia MP3 Player - Powered by 4 X AA Batteries to provid

• Integrated circuitry regulates output voltage specific to the Insignia MP3 Player. Advanced logic maximizes overall charger efficiency.
• Built using the unique Gomadic TipExchange Technology that protects your investment by providing the ability to upgrade charging ports by simply swapping physical connectors.
• Specification: Input Voltage (4 X AA Batteries), Cable length (6 inches), Dimensions (5.0 X 1.5 X 0.75 inches), Circuit Design (Insignia MP3 Player specific), TipExchange enabled (Yes)
• This Gomadic Battery Pack is uniquely designed to work with both standard (e.g. alkaline) and/or rechargeable AA batteries.
• Easy to operate. Simply insert batteries, toggle on/off switch and your Insignia MP3 Player will start to charge.

I was keeping myself entertained on a 20+ hour bus ride when my MP3 player quit! Fortunately, since the bus was delayed, I grabbed the Extender and made it home and found out what happened to the "Loonies" (The Moon is a Harsh Mistress).

Unfortunately, it didn't quite have the moxie to keep my BlackBerry alive when the Alabama tornado knocked out the power for 3 days.

None the less, I'm glad I have it!

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