Bumper case protects but adds hardly any bulk to your phone
At first glance, this would appear to be a regular bumper case for your iPhone 4S / 4 however if you take a closer look, housed in the bottom of the bumper is a FM transmitter. The bumper has been designed specifically for the iPhone 4S / 4 and will protect it from accidental damage. Adding a slight lip to the front and back, it will allow you to place the phone face down without worrying about scratching your screen.
Built in FM Transmitter lets you play music through your radio
Housed in the bottom of the bumper is a FM Transmitter. Adding around 1cm to the overall length of your phone, this is a small addition for increased functionality. By dowloading the free app and tuning your radio and FM transmitter to the same empty frequency, you will be able to listen to the music stored on your phone with great quality.
Draws power from your iPhone - no batteries required
Taking power from your iPhone, the bumper itself will never need to be charged unlike other similar products.
Built in USB port to sync and charge your phone
As the case will use the dock connector for the FM Transmitter functionality, the bumper has a built in USB port to allow you to charge and sync your device without having to take the bumper off.