Dogtra 1902S 2 Dog Training Collar with Remote -3/4 Mile Range Dog Locator. The durable 1902S e-collar features a 3/4-mile range and is fully waterproof. The receivers have a unique modern design that lets the collar strap wrap around the receiver and your dog's neck for enhanced comfort and seamless appearance. The Dogtra 1902S receivers output low-high stimulation from 0-127 levels, a wide range of stimulation that will fit any dog's personality from mild to most stubborn. Using a patented Rheostat Dial, the gradual and precise stimulation control is displayed on the illuminated LCD screen on the handheld transmitter.
The 1902S is also available in the 1-dog system, the 1900S.