Fluent.pet

While my dogs are not having any issues with the concept, the buttons are poor quality, much too small which confuses the dog, and much too quiet to hear when youre pet is actually asking for something.
These also ship from Hong Kong, and they have a horrible return policy if you hate the product.

Get those nice big buttons for toddlers. Much better option than these buttons.

Lists products they do not have in stock. Has sales on products not in stock. Cannot confirm when products will ship directly from China. None of their products are made in the USA