If it hasn't happened to you, you may have witnessed this scenario at that gym: a person is focused while running on a treadmill and accidentally catches his headset wires with his hand, causing his iPod to be flung away. The POGO audio jack concept prevents the annoying outcome of a minor slip-up with an easy release system. It keeps your media player motionless in your pocket or against the fitness machine.
Jon Patterson has developed a two-part adapter that sticks together with a magnet and transmits signals through four connecting pins. The link is strong enough to support the weight of your iPhone, but any force will dislodge and separate the segments. Simply plug your earbuds into to POGO audio jack, and then insert this into your device. You can even hook the components up sideways.