My wife has this handy dock…or at least, that is what I bought for her on her birthday, when she still had the iPhone 3GS. She now has the iPhone 4S and it fits this dock very well. As a matter of fact, I use it more than her, especially when I use it as a monitor when I do my DJ mixing. make no mistake, this baby is LOUD! And not only that, it is portable too. You can power it with 4 AAA batteries Remember, get the rechargeable ones. Great piece of equipment. JBL for the win!