The Field 90 G3 EXP has six levels of stimulation in nick and continuous, a no-break fixed antenna.

It also has a three-collar capacity, one-mile range, insulated and stainless steel contact points adjustable for every breed of dog, a tone button on the front of the transmitter, a battery life indicator on the transmitter and collar-receiver, NiMH batteries with a two hour charging time, a 30 day money-back guarantee, and a two-year warranty.

Contact: Tri-Tronics; (800) 456-4343; tritronics.com