Sentences with phrase «ultrasonic dog whistle»
It can also be used as a flashlight with an SOS strobe to signal for help or attached to a canine unit to operate as an ultrasonic dog whistle in search and rescue efforts.
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«It's rumored that, at the end of the Beatles song, «A Day in the Life», Paul McCartney recorded an ultrasonic whistle, audible only to dogs, just for his Shetland Sheepdog.»
A silent whistle reaches the ultrasonic ranges which are barely audible by humans, but readily audible to dogs.
Consider, for example, that some dog trainers use ultrasonic devices in the form of dog whistles to communicate with their four - legged partners.