The whole thing locks in to the iPhone 4's connector. although there's still another port to charge through there.

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The USB port on the connector is a low power port, and can't be used to charge other iPods.

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Always in Charge - With dual USB power ports, Sound Platform 2 charges iOS with 30-pin connector and 9-pin Lightning connectors including iPhone 5, as well as Android, Windows and Blackberry phones and tablets.

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