Hear Doggy! toys give your pet the same sensation and enjoyment of traditional squeaky toys without the irritating noise!. The science behind Hear Doggy!: Dogs can hear sounds at a higher frequency (0 to 45KHz) than humans (0 to 20 KHz). Tuned to an ultrasonic range in the 24-28 KHz frequency each Hear Doggy! squeaker is out of human hearing range but still fun for your four-legged friend.
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