Dog Training Whistle from Pets + TM

So far so good! As everyone knows it takes time to train a dog! I have only had the whistle for a week. It is well made and the lanyard makes it convenient to have handy. I am still working with the adjustment of the frequency of the sound. I wish some kinda of instructions came with it, I know you turn the screw to adjust and I might be a little dumb, but I can't seem to get it to the silent point, I want to use this when someone comes to the door,,, thus not a loud whistle plus barking dogs. I will continue to work with it and the training. As far as the whistle and the quality no complainants so far. I received in exchange for a honest and unbiased opinion. Below are the product description from the company on Amazon. Product Description Discipline and teach your dog to follow simple commands as well as control barking by using different whistle patterns. Universal whistle can be used to train other animals to establish communication. Some Instruction To Help You Get Started: 1 - Be sure to have special dog treats when training your dog. Decide on an action you want your dog to perform and apply a whistle pattern. 2 - Guide your dog to perform the action while repeating the whistle pattern. Stop the whistle pattern once the action is performed. Reward with a treat. Repeat the process. Your dog will begin to learn to perform the actions by recognizing the whistle pattern. Training your dog requires time, patience, and dedication. Pets+ Dog Training Whistle - Dog Whistle With Ultrasonic Sound And Adjustable Frequency Pitch To Discipline Your Dog, Teach Commands And Control Or Stop Barking - Great For Professional Trainers And Hunting - Includes Quality Branded Lanyard TEACH COMMANDS & DISCIPLINE your pets to "sit", "stay", "come" as well as control barking with this great training tool. GREAT FOR HUNTING! 3 PIECE TOOL includes ADJUSTABLE SCREW that helps adjust the sound frequency to one that your pet best responds to. LOCK NUT helps secure the frequency and pitch sound. COMPACT & LIGHTWEIGHT: Small convenient design for best portability PETS+ QUALITY BRANDED LANYARD included for easy carry and fast access. Stylish branded lanyard with double buckles is great for your active training sessions. Measuring at 19 inches. GREAT GIFT for all pet lovers and trainers.