With the option to order up to two much more collars to educate three dogs with a person distant, and responsive buttons for easy toggling in between collars, this is a good option for those with various Lively dogs. I use them inside the Intermediate to Highly developed Degree, when http://dogs-training-center40516.digiblogbox.com/21501150/rumored-buzz-on-dogs-training-electronic-collars