You would be surprised to know that every 5th search made by mobile on Google is voice search, and the numbers are only going to increase in future. The search in the upcoming time would be more intuitive, natural, and voice-based.
There is a huge availability of voice assistant devices in the market. Voice search in Google is nearly 95% accurate. You must be aware of the most popular voice-assistant devices in the market such as Amazon Alexa, Google Home. There are many other devices too Windows 10 Cortana, Apple Siri, etc. However, Google voice search is dominating the voice search industry and the e-commerce industry is leaving no stone unturned to leverage this thing.