Say namaste when your dog starts breaking away with E-Collar Technologies 101 Off-Leash 4 Sessions Dog Training DVD Plus Zen Mini 1/2 Mile E-Collar Remote Dog Training Collar. Paw-fect for first-time trainers, this step-by-step instruction will show you how to train your dog using the Zen Mini. This remote transmitter and training collar set allows you to communicate with your dog from up to a half of a mile away using a very clean electronic stimulation. The transmitter’s easy-to-use dial allows you to lock and set the stimulation strength between 1 and 100. It features a variety of other settings and modes that include momentary or constant stimulation as well as boost, tone, light and vibration functions.