A complete and comprehensive training system, the High Tech Pet Products Express Train Remote Radio Dog Trainer is an advanced remote radio dog trainer that quickly teaches dogs multiple behaviors with High Tech Pet's command-tone-stimulus system. Three positive tones associated with "sit," "heel," and "retrieve" combine with a negative tone to cease unwanted behavior. The negative tone may be followed by one of four increasingly intense shock levels if bad behavior persists. With a half-mile range, the collar and transmitter are fully waterproof and operate on built-in, rechargeable lithium ion batteries. Kit includes transmitter, collar, short and long hair probes, and a training manual.