Yes, such a device exists, and it’s called NoMoreWoof. Simply put, it’s “a mind-reading headset for dogs that translates their thoughts into human language.” Should you decide to splurge on the Premium model, it’ll set you back $1200 and “programs itself while in use, always learning more of how your dog thinks and reacts over time – this option let’s your dog speak short sentences (“I’m hungry – but I don’t like this”).” Continue reading for a video.

[Source]