Vibrators for couples?

I was scrolling through Tumblr a few days ago, and i saw this post where this guy and girl where out at a restaurant or something. I guess the girl was wear vibrating panties or had one of those bullet ones in and the guy was controlling it from his phone or something...

Has anyone else ever seen it or heard of something like it? I wanna get one to try it but I don’t know what it’s called