YouTube - Dogtra E=collar training ''Think Three!''-1

http://www.dogtrasales.com.These Dogtra remote trainers are designed for all type of dogs including, hounds and beagles, obedience/companion dogs, waterfowl dogs, pointer dogs, flushing dogs, service and K-9 dogs,and much more. They are also perfect for anyone who needs a dependable long-range training collar to control a number of dogs in the field at once.