The e-collar is usually known as a remote collar, electric collar, even shock collar and many other names. The reality is the e-collar is a simple muscle stimulator device used as a marker to train dogs. The e-collar is not a new tool. In fact the first e-collar was created almost fifty years ago and throughout the years the technology has improved to make it lighter, softer and with much more capabilities in terms of range, sizes and models for all kinds of dogs.