Google Glass is a wearable computer with an optical head-mounted display (OHMD) that is intended to be an "hands-free" device to provide information to the user. It uses technologies like wearable computing, ambient intelligence, 4G connectivity, and Android to allow users to access information and communicate through voice commands instead of manual interactions. While promising for hands-free access to information, it also raises privacy concerns about its always-on camera and potential for misuse.