The iRetrophone is hand-sculpted and hand-cast in urethane resin, and the base is a half-inch thick for stability. It is designed to work with iPhone 3G, iPhone 3GS , and iPhone 4. It docks at the bottom, with the cable sliding down into the housing, as you can in the second image.
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iRetrophone iPhone Dock

The Cable Slides Into the Housing
Thanks to Luxist for the heads up on this product.
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