Ultrasonic Professional Dog Whistle Aikeco

Description Material: Metal and Plastic Use an ultrasonic whistle to train your dog to recall and bark control, adjust the whistle to find the sound that suits your dog, because different dogs have different sensitivity to sounds. Through ultrasound, the whistle can also be used to drive away vicious dogs around. Please note that this product will not allow your dog to immediately understand your instructions. You should train your dog to do this. The best training effect is when dogs are 3 to 7 months old. A training instruction manual is included to help you. Package includes: 1 x Black Whistle 1 x White Whistle 1 x orange whistle 1 x Lanyard 1 x Training Guide