If you have an i-pod and need to connect with an aux, this is a great product. It charges the phone quickly, boosts the signal giving a lot of ooomph and some serious bassage. It's also easy to skip tracks forwards and backwards without having to look down.
I have one that has lasted two years of freqeunt use. It is now acting up and the left channel is not playing. However, considering the amount of abuse it has taken, the goood price and after comparing with other manufacturers, I have decided to order a replacement.