goDog Silent Squeak Ball Dog Toys are great for tossing, fetching, and chewing with pliable yet durable TPR. With a fun angled design that allows these balls to bounce in an unpredictable and erratic pattern that delights and excites pups. Featuring a patented ultrasonic squeaker that only dogs can hear! The puncture-proof squeaker is tuned to a frequency out of a human’s hearing range but is still high-pitched squeaky fun for your dog. Dogs can joyfully squeak without irritating their pet parent. Silent Squeak toys are perfect for working from home, watching TV, traveling, and nighttime play.