Three Belgian Malinois adults. No fences on my 3.5 acres of trees on the side of a mountain. My dogs come when they are called, and are boundary trained, BUT for my peace of mind, they wear this collar. A "tap" is a reminder when they stray too close to the road, or other boundary, or if they see a rabbit or deer that might be fun to chase. Since my Dogtra bark collars lasted only 3 weeks, I put these e-collars on them when they are in their dog runs and give a tap when they decide to start a "chorus" for no particular discernible reason. Very effective. I also put these collars on when I take them with me shopping. But, it is really just for show. My 2 service dogs have perfect obedience on and off-lead. So other than a seldom needed "no bark collar" and a boundary reminder, which is very, very seldom used . . . I have no real use for these collars, since I don't train with e-collars. Still, peace of mind: priceless. Well, not EXACTLY priceless . . . these are very expensive e-collars, but, so far, worth it, to my way of thinking.

I got this for my 2 dogs. Really like the options of multiple dogs with multiple settings. I think this is one of the best e-Collars i've come across (I've purchased 3 types and brands of E-collars over the years)
With the vibration OR shock option, The extended effective distance and multiple dog option- makes this collar more versatile than many other collars out there.
The only thing i really would like to see with this set up would be the option to use a Tone correction option.

I bought the ARC E-Collar because I wanted to use a single transmitter for my two Labs. I was replacing an older Dogtra 200NCP. I think the ARC is better in all respects except one. The battery life is great, and the recharge is very fast. The transmitter LED display is lighted so it is easy to use in the evening or at night, and it is easy to fine tune between say 29 and 32, something I could not have done before. Having to carry only one transmitter, with obvious buttons for each dog is a big convenience. The receiver is a little smaller, although I don't think it is enough different to care about, especially on a dog as big as a Lab.

The only negative compared to the 200NCP is the vibrate (page) mode. On the 200NCP it was all I needed most of the time. With the ARC, neither my older dog or our pup (both of whom responded to the page on the 200NCP) even seem to notice the page. It does not feel that different to me, but I get absolutely no reaction from the dogs when I use it.

The only other comment is that the Nick mode is typically not effective for my dogs. They generally won't notice the Nick, while a quarter second of the Continuous at the same level is all they need. In order for the NIck to be effective, I have to turn the level up so high that even a quick pulse on the continuous mode is too much. I which the Nick was just a little longer so I could use it without having to change the setting. This is not a a change from the 200NCP, since I had the same issue with it.

There are many items in my 'must-have' dog kit, and this is one of them. I use this item on a daily basis and I never leave the house without it, whenever I'm with my boy. I would strongly advise seeking professional training when using an item like this as it is something that a user could get so easily wrong.

In the UK, there are many that do not approve of the use of e-collars (usually those who have never been shown how to use one correctly) so the fact that it is very discreet, means that you can confidently use the collar in public spaces if required.

My only criticism would be the level range, as I feel that it is limited too low. My boy is highly scent driven (he is intact) and there have been occasions where there has been a need to steadily increase the level to the maximum, with no effect. It could be said, that for some dogs once in that state of mind, no matter how high the level the only option is to physically remove them from the scent, but it would be useful to have a higher range just in case.