Here at the Shooting Shed we only use and stock Acme Dog Whistles, why you may ask. Well, they are a British product, durable and dependable, they are waterproof and importantly, the 211.5 I have had for so many years should have the same tone as a brand new off the item shelf.
Acme tell us:
All our Acme dog whistles offer consistent sound quality, are weather-proof, and are all individually tested and guaranteed, this is why Acme dog whistles are relied on by top dog trainers around the globe when they're looking to buy a new dog whistle on-line. In fact, many trainers buy their dog whistles online in multiples so they can be sure they’ll never be without their most trusted training tool.
Dogs are all different, and some will respond to certain frequencies better than others and some may be best trained with a dog clicker; for example, it has been said that Retrievers and Labradors will generally benefit from a whistle that carries further such as our 211.5, and a slightly higher pitched dog whistle like the 210.5 dog whistle is ideal for closer work. For the ideal all-rounder and for dogs which are harder to train, try the Pro Trialler 212. It keeps an even tone no matter how hard you blow, to help avoid confusing your dog during training and trials.