Epica Remote Dog Training Collar Shock and Vibration for 1 Dog, Provides Safe but Annoying Static Stimulation- Ability to Shock or Vibrate Provides safe but annoying static stimulation One remote control can operate the trainings of two dogs up to 1000 feet away. Will work with dogs from 15 to 100 pounds dogs Shock or vibrate each dog independently Rechargeable Water-resistant collar W/ Auto sleep feature to save battery life