Product description: Quantity: 1 piece Name: Ultrasonic dog whistle. Specifications: 5.5*0.8 cm Material: brass Weight: 129 Packing: PP bag Color: silver Suitable for: hunting dogs, work training pet dogs to stay away calls How to use: loosen the sonic adjustment screw, blow air from the air inlet and rotate the adjustment rod to the appropriate pitch; after the adjustment rod is screwed, tighten the sonic adjustment screw. This dog training whistle is mainly designed with ultrasonic sound, and the whistle is made of brass, which allows the product to emit high quality ultrasonic waves.Note: There will be a certain color difference in the lighting effect when taking photos, please refer to the actual product! Detailed introduction: the flute dog training can be adjusted according to your dog's sound as needed, so that the dog can understand the meaning of the owner according to the sound of the flute. Dog training is easy. For example: "Don't move" --------- two short sounds "Sit -you" ----.-- one long and one short "Come here" -------two long sounds When you teach these actions to your dog, play the flute according to the prescribed method, and then teach him to do the corresponding actions. Repeat the workout. When the flute starts playing, your dog will know what to do. Friendly Reminder: When your dog successfully completes the instructions you gave him, you should reward him appropriately with crispy cookies or snacks. Product Details: Clamping nut: adjust the volume position. Chromed metal: use it for locking to prevent loosening The product is made of brass, which makes it durable and not easy to rust. Sound size adjustment: the volume can be adjusted by changing the size of the internal space of the flute. Iron ring: it can be hung on the body, or it can be hung on the dog's neck for decoration, and it can also be used as a name tag! Mouthpiece: Polished mouthpiece, a dog training flute with a fine texture that will not grease when played.