Bests & Worsts Reviews from Amazon

I'm going to write a review that includes a few simple directions on how to use the whistle because I wish someone had done this for me before I bought it so that I wouldn't have to spend so much time on other sites learning how to properly use the whistle. First, the review: once you figure out how to tune it to your dog's(s') ears, this whistle really works! That said, sometimes it takes me blowing it several times before they respond when they are far away. At times, when they are inside the garage 40 feet away, my dogs don't respond at all (but sometimes they do...not sure why it varies, but it could be due to a number of factors). How to use this whistle: When I first got this whistle, I started to wonder whether it worked at all, until I did the following: 1) When you get the Remington dog whistle and you take it out of the box, pull off the plastic cover and have dog treats ready nearby. 2) Try blowing the whistle with your dogs within view and not more than 25 ft. away. It's best if you blow it when they are not focusing you on you. The dog whistle will make passing air/swooshing sound or a somewhat high-pitched whistle sound depending on how far in our out the Tone Adjustment Screw is in the whistle itself (see #3 for more details). 3) Loosen the locking nut ring then screw in (or out) the Tone Adjustment Screw in small steps (half turns) and keep on blowing the whistle in spurts until you see the dogs ears perk up or you see them tilt their head in a manner that is obviously due to the ultrasonic sound the whistle will make (that you won't be able to hear, but your dogs will). 4) Once you get to that sound they respond to, you can call your dogs over with the treat, while you keep blowing the whistle with the command you want to assign for them to "come here." Give them a treat when they come over. (Note: I use two short whistles to make them come to me then a single whistle to make them sit then I give them a treat). 5) While they eat their treats, I like to keep on whistling the "come here" command to get them used to it, at least in the first week or so of my training. 6) Repeat the above 4-5 times a day (and night) for at least a week as you are training your dogs so that they can learn that the whistle sounds means to "come here." A couple of important notes regarding this whistle: contrary to what others have written, you do not absolutely need three whistles if you have three dogs for them to hear their own specific, individually tuned sound; that said, I've noticed that the smaller dogs I have respond better to the tone I locked onto on my whistle while the larger German Shepard hears the tone, but doesn't respond to it as well (it could just be her personality and stubbornness though). Lastly, I've noticed that a lot of buyers are complaining that the whistle "doesn't work" or that it's "not silent." Dog whistles are not supposed to be absolutely silent--at very least they make an air "swooshing" sound or at the other end of the spectrum (and when you tune the Adjustment Screw outwardly on this particular whistle) they will emit a high pitched sound that you can hear. I've personally found that my dogs react best--even from far away--to the quiet, swoosh sound that I hear (with the Tone Adjustment Screw nearly all the way inside the whistle part) as they hear the ultrasonic sound that is silent to my ears. I sincerely hope this helps out.