The Border Patrol TC1 Receiver and Collar from D.T. Systems is a rugged and reliable GPS e-fence and remote training unit that is designed for the harshest field conditions. Waterproof collar unit withstands anything Mother Nature dishes out. Water-resistant handheld unit features a 2.4" TFT color LCD display for easy viewing. It features 50 stimulation intensity levels including momentary, nick and continuous. Choose from three types of stimulation, including positive vibration, jump stimulation and rise stimulation. Training range up to two miles line-of-sight. GPS fence mode provides custom training radiuses from 15 yards to 800 yards. Warning zones are indicated with a vibration, beep, vibration/stimulation or beep/stimulation with delay. Up to four additional way-points can be marked in addition to the saved fence center. Supports up to five extra dogs with add-on units (sold separately).