Google released “Google Voice Search Hotword” Chrome extension for Chrome browser on desktop. This extensions allows you to use Google search hands-free, you can say “OK Google” the familiar word from the Mobile Google now. It works the same way as it works in Nexus 5. After installing the extension you just have to say “Ok Google” and then say what you want to search.
The chrome extension works only when you are on Google.com for the moment. It adds upon the voice search already present in Google, but with hands-free experience. Earlier you had to click the small mic button to start the search, now it is a matter of saying the word. It also works from the search results page, so you can continue using the voice search for any query you have.
Google wrote on Google+
This year, rather than stopping midway through to wash your hands and type in a search, you can just speak to your laptop: “Ok Google, how many ounces are in one cup?” Et voila, the cooking can go on. You can also say “Ok Google, set a timer for 30 minutes” so you don’t forget to baste that turkey.
Download Chrome extensions