USB Rechargeable Battery Pack (3800mAh) For Wii Fit Balance Board

USB - Universal Serial Bus

Battery - A device used for the storage of electricity

Wii - A computer console manufactured by Nintendo

USB - Universal Serial Bus. A method of connecting a device to a computer

Balance - Something that is evenly weighted to keep something upright.

Popular - Something that is admired and liked by many people.

Rechargeable - Something that can be charged back to its original state, e.g. batteries.

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