SportDOG Brand 425 Remote Trainers - 500 Yard Range E-Collar with Static, Vibrate and Tone - Waterproof, Rechargeable - Including New X-Series, Stubborn Dog E-Collar, Original (Old Version)

The FieldTrainer 425S takes the most advanced, industry-leading technology that SportDOG Brand has ever built into its e-collars and packaged it up in the most compact system ever offered. Designed specifically for stubborn dogs, the SD-425S has a higher range of stimulation than the SD-425. Ideal for training in the yard or field, or for hunting with close-working dogs, the SD-425S allows you to switch instantly between 7 levels of medium/high static stimulation, as well as train with vibration and tone.