This speaker receives a perfect rating from Tech Reviews, it provides nice portable audio for the iPhone and isn't too expensive.

"Compared with most newer mobile phones, the iPhone’s speakers have much to be desired. Even though the sound quality is very good, they just aren’t loud enough. Imagine going to the park with a few friends and theirs loads of noisy, screaming children around; you aren’t going to be able to hear your iPhone at all! This is where the iMainGo 2 comes in. The iMainGo 2 is a hand held, portable speaker for your iphone, ipod or zune. Developed and created in America, it’s becoming more and more popular as we speak. Let’s see if it lives upto all of the hype and quality it promises."



Link: Tech-Reviews.co.uk