A shock collar or remote training collar is any of a family of training collars (also called e-collars, Ecollars, or electronic collars) that deliver electrical stimulation of varying intensity and duration to the neck of a dog (they can also be applied to other places on the dog's body, to achieve various training effects) via a radio-controlled electronic device incorporated into a dog collar. Some collar models also include a tone or vibrational setting, as an alternative to or in conjunction with the shock. Others include integration with Internet mapping capabilities and GPS to locate the dog or alert an owner of his/her whereabouts.