The browser extension, Google Voice Search Hotword, can be downloaded from the Chrome Web Store and is available both for the desktop and laptops. Google designates it as being in beta.
The tool lets users perform a voice search by going to Google.com and saying, “OK Google,” then speaking the search term. With the Thanksgiving holiday coming in the U.S., Google gave some cooking-related examples in an explanatory video: Users can say, “OK Google, compare olive oil and butter,” or, “OK Google, what is five tablespoons in ounces?” (Answer: 2.5.)
Reminders can also be set with the service, so people can say, “OK Google, set a timer for 10 minutes,” or, “Remind me to buy more olive oil on Sunday afternoon.”