Duoduole 1 Pc Dog Whistles, Dog Training Whistle Professional Gundog Whistle High Pitch Dog Whistle with Lanyard Keychain for Barking & Recall

[High quality product] The dog whistle is made of copper material, which is environmentally friendly and non-toxic. The high quality material can emit high-quality ultrasound [Clear signal] This hound whistle ensures that your dog always receives clear signals and commands. No loud noise will drown this high-frequency dog whistle, making the communication between you and your dog clearer and easier [Adjustable frequency] You can adjust the sound of the dog's training whistle at will according to the actual situation of the dog, so that the dog can understand your meaning more easily and train more easily [Unique sound] The dog recalls the ultrasonic frequency of the whistle. Your dog is very sensitive to this sound. It is not easy for human to hear, so it will not cause interference to the surrounding environment [Widely used] Whistle can help you train your dog to perform different commands, such as sitting, stretching and lying down. It is applicable to Teddy, Samoye, Husky, Golden Retriever, Shepherd, Alaskan and other pet dogs