It is a wearable computer that has an optical head-mounted display. Google Glass is a product of Google, a giant search engine. It was developed with the intention of bringing free display technology to the public. It first became accessible to the public on 15th May 2014. Before then, it was only accessible only by invitations by Google. The earlier version cost $1500 to acquire. The consumer model of Google Glass is expected to cost lesser than this, it is not clear how much less it will be though.
This wearable is still on beta testing and the manufacturer is looking for early adopters better known as Explorers.
Google glass is equipped with a HUD, a Camera, Microphone and GPS. It can therefore carry out several tasks for instance taking pictures, dictate and send a message, record video, search information on Google, make a Google hangout video call and translate ones voice.
When paired with Xbee 802.15.4 Wi-Fi radio and Microcontroller, one can use it to control devices that have Infra Red transmitter. This enables the user to connect to devices and control them using Google Glass.