Sensor-Powered Pick Turns iPhone Into Air Guitar
The Air Guitar Move for iPhone is a guitar pick that plugs into your phone. Inside the pick is an accelerometer, so it knows just how hard you are thrashing. A pair of companion apps works with the accessory to actually give it some functionality.
Source: http://www.wired.com/gadgetlab/2011/06/smart-pick-turns-iphone-into-air-guitar/
Wilhelm Klassen Nathalie Füllgraf Janine Harrer Emilia Münchow