To quote their website:
Cat fanciers will adore these pretty, slumbering Perfect Petzzz kittens. And they come without the litter box, smelly food, vet bills and spraying incidents associated with cat ownership. The perfect companions, Perfect Petzzz kittens just sleep the day away.
Each Perfect Petzzz kitten is individually handmade, with slight variations in color and appearance-just like real kittens! Two new 'D' alkaline batteries allow your kitten to live and 'breathe' for up to four months before new batteries are required.
I guess I'm thinking a little too much about this, but my sick and twisted mind wonders if Perfect Petzzz would combine their "technology" with the barbaric art of modern taxidermy: "Is Rover dead, Grammy? No, he's just sleeping... sleeping for up to four month before new batteries are required!"