One of the most poplar Tri-Tronics training collars is the the new Sport Junior G3 It is well-suited for novice trainers, avid users, and professionals alike. 1/4 mile range; 7 momentary, 7 continuous; waterproof collar/receiver;
remote collar light.

The Sport Junior G3 is especially designed for the first time e-collar  owner. 
If you are interested in developing a well-behaved dog that you  will be proud of and have fun with, the Sport Junior is a “must have” training tool. Tri-Tronics has combined the reliability, quality, and ruggedness of  their professional systems with the simplicity that will allow virtually anyone to effectively and easily train their dog.  Finally, the Sport  Junior is affordably priced for anyone interested in training their dog.