SportDOG Brand for all TEK V1. systems (TEK-V1LT and TEK-V1L) and various SportDOG E-Collar. SportDOG Brand of Knoxville, Tennessee, is a manufacturer of electronic dog training gear and accessories. Product lines include remote training collars, no-bark collars, an in-ground fence system and remote tracking systems. The company also carries training leashes, bells, collar straps, dummies, scents and whistles, TEK Series E-Collar Plus GPS Location and GPS Location only systems, and Canine Athlete nutritional products.