Basically is used to control the dog by attaching a leash to the during a dog walk with the owner of the dog, dog collars can also be used to identify the dog with the owners information written on a tag that is attached to the dog collar and other information can also be written on the tag, and the dog collar is also used as a fashion statement of the owner.
He is now so convinced that other animals use similarly decipherable language that he is attempting to raise money to develop a cat and dog translation device.
Futurologist William Higham of Next Big Thing, who co-authored the report for Amazon, says he believes devices that can talk dog could be less than 10 years away.