SportDog - SD-425 - Camo WetlandHunter for Large or Stubborn Dog Waterproof Shock Training Collar Range: up to 500 yards. 7 instantly selectable static stimulation levels with medium/high stim ranges. Option to train with vibration and tone. Designed for dogs 8 pounds or larger with neck sizes 5" - 22". Waterproof and submersible to 25 feet.