Official Distributer World renowned Acme dog training whistles in 211.5 tone. This tone of whistle is usually preferred for Labrador Retriever type dogs. Pea-less and lightweight ideal for training with or a day out in the field. The whistles in this tone have a clear, loud sound tested at 5700Hz, which can be heard by your dog up to 1.5km away . I have been using this type of whistle for over 40 years in the field and by far the best there is. Check my 100% feedback, a trusted seller
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