https://www.imore.com/should-you-get-smart-collar-your-dog-or-cat
Your pets should be considered family members. So always have some peace-of-mind when it comes to where they are with a smart collar.
getsmartcollardog
https://gulfnews.com/photos/business-photos/south-korean-firms-smart-dog-collar-tells-owners-whats-in-a-bark-1.1610448702365
Collar can tell pet owners through an app if their dogs are happy, anxious, angry or sad
smart dog collarsouth koreanfirmtellsowners