Photos: CES goes to the dogs
A button your dog can press to tell you it's hungry and a robot dog toy that you can customize are among the latest tech at CES in Las Vegas.

An exhibitor holds up a Dog-E smart, app-connected robot dog before the start of the CES tech show Wednesday in Las Vegas.

A Dog-E smart, app-connected robot dog is on display at the WowWee booth before the start of the CES tech show Wednesday in Las Vegas.

FluentPet dog communication buttons are on display before the start of the CES tech show Wednesday in Las Vegas.