標題: Learn More [打印本頁] 作者: ScarlettAl 時間: 2021-5-2 20:44 標題: Learn More Ultrasound whistle training is a strategy used by several beginning along with expert dog personal trainers, particularly for training a dog to quest. It uses an exclusive whistle knowned as an ultrasound whistle or even dog sound to obtain a dog's interest and also provide orders. Some even call the device a soundless whistle, because it creates noises in very high frequency ranges that generally are actually faint to individuals, more info.