Dog ears are much more sensitive to sounds than human ears. They can hear sounds we can't pick up. It makes sense, therefore, to train dogs using silent whistles, which produce sounds human ears can't catch but dog's ears can hear.
The Coastal Pet Products Coastal Remington Silent Dog Whistle from Pet Store is an example of such product. The sound produced by this whistle is almost inaudible to our ears, but as clear as the tolling of bells for dogs as far as 300 yards away. This whistle, in particular, can be adjusted according to pitch level, because dogs have slightly varying sensitivity levels.
But all in all, dogs have proven to respond to the Coastal Pet Products Coastal Remington Silent Dog Whistle, given its number positive reviews online. Whistling is a much more effective way to get a dog's attention, even if verbal commands such as "Sit" and "Fetch" work. Training dogs to respond to verbal commands is a good idea, but it becomes so much better if you can train them on a level that sounds more natural to them.
This whistle is perfect for training outdoors with your dog, because you don't want to bother people with annoying whistle sounds.
Almost inaudible to the human ear, the Remington silent dog whistle features an adjustable pitch that can be heard by your dog over 300 yards away. To adjust the tone of the whistle, remove the hard plastic sheath and turn the adjustment to the desired setting. To achieve maximum results, always use the same frequency pitch while training. When used consistently and in conjuction with positive reinforcement, desired results can be seen within days.