The PowerRumble FX is a rechargeable battery pack, dual stereo speakers with volume control, rubberized hand grips for added comfort, and built-in rumble (based on sound), all in one package. Note that the battery pack lasts for up to 18 hours, two less than its cousin, the PowerPack EX. The unit includes an AC adapter for recharging the battery pack or directly powering your GBA, plus a cradle for storing the battery pack while it recharges. The PowerRumble FX will be available in purple and transparent iceberg-blue models. Manufacturer's suggested retail price: $24.99 (USD).

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