Amplify the iPhone 4's Volume Without Power: the Griffin AirCurve Play [IPhone Accessories]

One of the simplest gadgets ever is also one of my favorites. I'm talking about Griffin's original AirCurve, the acoustically-shaped amplifier that docks and increases the iPod/iPhone's volume. It's now been updated for iPhone 4s, increasing music 10dB louder. More »

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