Plug-in Laser Pointer and Stylus for iPod and iPhone
Simply plug this nifty device into the headphone socket on an iPhone, iPod, or even iPad and it becomes a convenientlaser pointer. A great tool for teachers, lecturers, or for use in business presentations. The free iOS app allows you to flash the laser at certain intervals or adjust the brightness. It also double as a stylus for finer control of your touchscreen.
Laser jack App available for download from the App Store:
