iSimple IS5601 Portable megaPhone Amplifier for iPhone - Retail Packaging - Black<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Works for iPhone 4S， iPhone 4， iPhone 3GS， and iPhone 3G</li><li>Acoustical horn design improves volume while maintaining quality</li><li>No batteries need</li><li>Durable construction</li><li>Portable design</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31lubGLdVLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/311eBArUSxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31fQdTgq30L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XNC9L-VPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xi0QTl1JL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41h%2BCLp9D3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31TUZqGKEKL.jpg" noproxy>