The video below shows a nice application for police work. At CES, there was an application for firefighters as CNET describes:
“The lightweight headset, developed by Kopin and Ikanos Consulting, offers a plethora of tech (such as a 1.2GHz dual-core processor) for the wearer that essentially acts as a powerful hands-free computer. The device contains a 14-megapixel camera, GPS, gesture control, speech recognition, and a micro display at the end of the headset stalk that simulates a 15-inch screen. A microSD port allows the user to record images or video during use.
A noise-cancelling microphone, which worked well in the loud halls of CES, corresponds to the built-in speech recognition that enables the wearer to control the software with their voice or speak with others. As for connectivity, the Golden-i features 3G/4G LTE, Wi-Fi, and Bluetooth. “