Bests & Worsts Reviews from Amazon

Works great for my dog. I was not a fan of "shock collars" as I was very uninformed on what they really are. If used properly they do not "shock" the dog. If used properly it is actually no different than you using a TENS unit, it is a stimulation not a shock. I will never use anything on or give anything to my dog that I have not tried myself, yes including food and treats. I put the unit on my arm to test it out. I slowly brought the levels up until I felt the stimulation in my arm. It was not painful at all. I have used TENS units for my back and it was no different. Now if I jacked it all the way up I am sure it would feel like a shock or at least it would be painful. That isn't how you use an e collar, you find the lowest level at which you dog reacts to it. My dog's reaction level was actually lower than what what it was on me. It's just high enough for them to be distracted by it, not inflicting pain. I love the fact that it also has tone, vibration and continuous stimulation, for up to 10 seconds. When I am training a new command, let's say sit, I will use the tone instead of a clicker. So I will teach my dog how to sit, each time he sits properly I tone then treat. My dog understand that when he sits, or whatever new command I am teaching, he hears the tone and a treat will follow. Once he understands what sit means in an undistracting environment then I willI take him into more distracting environments. In the distracting environments I will use the vibration function to hold his attention while giving a command. In these situations he has learned that when I give a command the way to get the vibration to stop is to perform the command. As soon as he performs the vibration stops then I tone and treat. I have never had to use the stimulation function on him. He now understands what is expected when he hears the command and feels the vibration. As to proper use of e collars, these are not magic, they will not help your dog learn any faster if not used correctly. Actually you can do more harm than good if you don't know what you are doing. Do some research online, talk to a trainer that utilizes them, read a book, watch lots of YouTube videos, etc. before you start using an e collar. The main thing to understand is that your dog needs to know the command BEFORE you start using the e collar. It will not do you, or the dog, any good to just tell them to sit while holding down the button. If they don't know what sit means the collar won't make them understand any faster. In fact it can actually do the opposite and create agression in your dog. So 99.9% of the failure is not the dog its the person improperly using an e collar. From other reviews I can bet that is the issue with a good portion of the bad reviews, in my opinion and I could be wrong. The distance for use is pretty good too. I am not sure exactly how far I have been from my dog but it was quite a distance. It works quite well for my needs as far as working distance goes. When you push the button on the remote the collar reacts instantly, there is no delay like I have seen in other e collars. I had another brand I ordered from Amazon, returned immediately, that there was about a one second delay between button push and collar reaction. Not with this unit, it is instant even at great distance. Any delay in reaction between remote and receiver can cause confusion for your dog when training. Overall I am very happy with this unit. It was a great price and very user friendly. It feels great in my hand and the collar fits my dog well. Additional collars are inexpensive if you need to replace or want to train two different dogs. This unit has the ability to have two collars synced to it. There is a switch so you can go back and forth. You can't use it on two collars at the exact same time, only one collar can be active at a time. Hope my review helped, thanks for reading!