Hear Doggy’s Silent Squeaker Flattie Dog Toys are  durable plush squeaky toys that only your dog can hear. Inside each toy is an ultrasonic squeaker that is out of human hearing range, but still tons of fun for your furry friend. It’s made with Chew Guard Technology that uses reinforced seams and a specially engineered lining so it can hold up to vigorous play. Plus, no stuffing means no mess!