Adjustable Frequencies Ultrasonic Stainless Training Review

【Adjustable Frequencies】With adjustable frequency, our dog whistle allows you to train your dog to stop barking , sit, come, lay down,stay and so on through ultrasonic of the whistle. Our dog training whistle has a nut and screw that would adjust the frequency when turned. Notice your dog's reaction to each setting until your dog exhibits the strongest reaction. 【NOTE】Please note that this ultrasonic dog whistle won't make your dog understand your instructions immediately. It requires multiple training for your dog to listen your commands. 【Easy Dog Training】Blow consistent blasts and use the rewarding-positive-behavior approach to make your dog a listening and obedient friend. When the dog is 3 to 7 months old the training effect is well. 【High Quality】Our dog whistle is made of high quality metal and hard plastic. Double anti-lost design of special lock nut & cover design and free lanyard allows you to prevent dirt, damage, and accidental loss. Besides,this bark control whistle is long lasting and rust proof. 【Safe & Efficient】Made of SAFE MATERIAL ,our whistle allows you to train your dog without any health concerns. Your pet can hear the dog whistle up to 25 meters away even if they can't see you! Train your dog with different commands and get them to follow your instructions.