Dogtra Training Collars Black/Orange. The Dogtra 1900S e-collar demonstrates what we strive for -an ultimate dog training tool that is durable dependable and designed for the most demanding conditions. This high output e-collar is the unit of choice for serious amateurs and award winning professional trainers in pet obedience hunting competition trials and K-9. The durable 1900S e-collar features a 3/4-mile range and is fully waterproof. The receiver has 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 1900S receiver outputs 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 intensity dial the gradual and precise stimulation control is displayed on the illuminated LCD screen on the handheld transmitter. The 1900S is also available in the 2-dog system the 1902S. Specifications for Dogtra 1900S Dog Training e-Collar: Manufacturer: Dogtra Dog Breed: 35 Pounds and up Battery Type: 2-Hour Rapid Charge Water Resistance Level: Waterproof Range: 3 miles Included Accessories: Battery Charger and Splitter Cable Gear Bag Test Light Transmitter Additional Features: 0-127 Levels of Stimulation Package Contents: Dogtra 1900S Dog Training e-Collar Dogtra 1902S: 1902S Training Collars Black/Orange