Now more peoples have mobile phones than desktop computers that simply means, more people performing google search on mobiles. Few years ago google added Voice search feature at google home page to make search easy and fast. Since voice search is gaining momentum, now webmasters want to know, is there websites is ranking on voice search results, if yes then at which keywords and what is performance of their website.
This same question is asked by a webmaster to google employee Garry Illyes. He replied “we’re looking into it. In theory they’re already reported just not highlighted”
@Callmenicholi we're looking into it. In theory they're already reported just not highlighted
— Gary Illyes ᕕ( ᐛ )ᕗ (@methode) March 27, 2017
Since we can’t get this data in Google Analytics, it would be nice if Google gave it to webmasters in Search Console. The percentage of searches happening over voice search is growing. The last metric we saw was that 20% of mobile searches are voice enabled and if mobile searches are higher than desktop, that can be a big number of many web sites.