70990 Dogit Doglt Silent Dog Whistle – The Dogit Silent Dog Whistle produces a variety of high-pitched notes that only your dog can hear. Ideal for summoning your pet without disturbing the neighbours. Chrome-plated with ring attachment Can be worn on a key chain, or on a string around neck. Dogit High Pitched Silent Dog Whistle with ultrasounds. Chrome-plated with ring attachment for key chain or neck wraparound.