Voice is not a new thing today, voice search is available in the decades. Voice search is the technology, in which a user can use his voice to search for something or anything over the internet.
It was first introduced for the people on their mobile phones.
And today it can be seen over the desktop, mobiles, some Google devices, Apple devices, Microsoft devices, Alexa with Amazon Echo, Google Voice Search, Cortana, Siri, etc.
You can also see this functionality over many eCommerce websites also for searching products, and on Youtube to search for videos too.
Here I tried to share short info about voice search if you want a detailed post over this then let me know I Will share that too.