Einstein stands for "a brilliant brain". To me that is not what these collars represent. Your dog is not even a year old so she still needs to learn to adapt to the crazy human ways. There are more positives ways to teach your dog without having to hurt her. Of course this is my personal opinion and this matter has already been discussed extensively on the forum. It is not my intention to re-start this again.
Deja, GSD, sable WL, female, born 11 / 2013
Cam, Rough Collie, sable, male, born 8/2015