The new Fostex AR-4i offers a complete solution for improving the sound quality of the high-definition videos that are shot on Apple’s wildly popular iPhone 4. You slide an iPhone 4 into the cradle of the AR-4i, and it gives you multiple microphone inputs, line-level inputs, level meters and improved A/D converters which enable the phone to capture pristine sound quality.
Two compact microphones and a pistol grip are included with the AR-4i. The pistol grip helps you steady the camera as you aim the microphones toward the sound source during handheld shots. A camera shoe mount is attached to the AR-4i for mounting additional gear to the device. For a more in-depth look at the Fostex AR-4i, check out this B&H InDepth review.