Tri-Tronics G2? Pro Series Electronic Dog Training Collars

Tri-Tronics? G2 Series Each unit in this series is waterproof, with a no-stimulation position on the transmitter, audible tone, 1-mile range, long and short changeable contact points, battery life indicators on the transmitter and receiver, rechargeable NiMH batteries, carrying case, basic training DVD, and owner?s guide. Each unit in the Pro Series features a position on the transmitter intensity dial for using accessories, and easily expands to a 3-dog system. Model 100 has 18 levels of continuous and 6 levels of momentary stimulation; model 200 has 6 levels of continuous and 18 levels of momentary stimulation; 500 has 18 levels of continuous and 18 levels of momentary stimulation.