Dog Flute Training Dog Whistle Black Pen Sleeve Adjustable Dog Whistle Dog Training Supplies

Function Introduction: This Product Can Help Train Pets!Pigeon Training, Dog Training, for Cat Training.The Super-Long Sound Waves Emitted by Pets Can Be Heard Three Or Four Kilometers Away, but Human Ears Cannot Hear Them.With Volume Adjustment Screw, You Can Operate the Sound According to the Actual Usage.However, You Must Train It from an Early Age, Do Any Action with a Long Sound, Do Any Action with a Short Sound, Reward It Accurately, Punish It If You Do Something Wrong, and Do Not Blow It Casually, that Doesn't Work.