The Dogtra 1900S e-collar demonstrates what we strive for – an ultimate dog training tool: Durable enough to withstand the most demanding training conditions (IPX9K waterproof certified), precise and intuitive to use, and reliable. This 3/4-mile range, high-output 1900S e-collar is the unit of choice for serious amateurs or award-winning professional trainers, whether for pet obedience, hunting, competition, or K-9.