Digipower JS Instant Charger - External battery pack - Li-Ion (30-pin dock connector)

This rechargeable battery charger is ideal for your smartphone and portable player. It plugs directly to your device giving you long hours of audio playback and talk time. The rechargeable battery stays charged for a long time. The charger also allows you to sync while you charge.

Key Features and Benefits: Works with smartphone and portable player Gives you long hours of talk time, video and audio playback Rechargeable battery Pass-through mode for smartphone charge and sync to PC