An apparatus (300) for applying at least one stimulus to an animal for controlling the animal or animal positions is disclosed. The apparatus (300) is configured to be worn by the animal and comprising a housing (305 carrying at least one stimulus device (350a, 350b, 350c, 350a', 350b', 350c') that is configured to apply at least one stimulus to the animal at two or more levels of intensity. The stimulus is applied on a basis of a control signal received from at least one controller (310) that is in electronic communication with the at least one stimulus device (350a, 350b, 350c, 350a', 350b', 350c').